Best Torch for Power Cuts UK: Emergency Lighting Guide

For a power cut, a dual-power torch such as the P5R, which can switch to AA batteries when you cannot recharge it, is the best place to start.

A power cut rarely comes with warning. One moment the lights are on, and the next you are trying to find your phone, locate a torch and work out how much battery is left.

Having the right lighting ready can make a difficult situation much easier. You need to see where you are going, find essential items, check on family members and keep everyday tasks going until the electricity returns.

The UK Government's Be Ready campaign recommends keeping supplies available to manage up to three days of disruption. A torch and spare batteries are among the essentials worth having at home.

But buying the brightest torch you can find is not necessarily the answer. You need to consider how long it will run, whether you can replace its batteries if charging is unavailable and whether it provides the right type of light for your home.

For a practical emergency lighting setup, I would prioritise three things:

• A reliable handheld torch with enough runtime for everyday household tasks.
• A dual-power light that can use batteries if you cannot recharge it.
• A lantern or head torch to provide wider or hands-free lighting when needed.

This guide explains what to look for and compares Ledlenser torches and lanterns that can help you prepare for a power cut. I have also included options for different budgets, from compact backup lights to longer-runtime models.

Key takeaways

• The UK Government's Be Ready campaign recommends keeping supplies to manage up to three days of disruption, including a torch and spare batteries.
• A dual-power torch, such as the P5R (2025), HF4R (2026), ML4 or P3R, can switch to standard batteries if you cannot recharge it.
• Check runtime at a brightness you would realistically use: the P5R gives up to 20 hours at 25 lumens.
• The P7R (2025) offers up to 80 hours at 25 lumens and the H15R up to 200 hours at 15 lumens, but both are rechargeable only and need a battery-powered backup.
• The ML6 lantern gives up to 750 lumens and a built-in power bank, but the standard version is not dual power.

In this guide

1. Which torches are best for power cuts?
2. What should you look for in an emergency torch?
3. Best Ledlenser torches and lanterns for power cuts
4. Which Ledlenser torches offer the longest runtime?
5. Torch comparison: brightness, runtime and battery type
6. How to put together a practical household emergency lighting kit
7. How to prepare your torches before a power cut
8. Frequently asked questions about torches for power cuts
9. Be ready before the lights go out

Which torches are best for power cuts?

If you want a quick recommendation, these are the models I would consider for different household needs.

If runtime is your biggest concern, the P7R (2025) handheld torch and H15R head torch are also worth considering. The P7R (2025) offers up to 80 hours and the H15R up to 200 hours on their lowest settings, although neither provides the same battery backup as the dual-power models.

The important thing is to choose lighting that suits the way your household will use it, rather than buying several torches with the same purpose.

What should you look for in an emergency torch?

Before choosing a model, it helps to understand which specifications actually matter during a power cut.

1. Brightness: how many lumens do you need?

Lumens measure the total amount of visible light produced by a torch. A higher lumen rating generally means more light output, but it does not automatically make a torch better for household use.

Think about what you need to illuminate. Finding something in a cupboard, walking down a hallway and checking the garden all require different levels of light.

As a general guide:

• 20 to 100 lumens: Useful for close-range tasks and moving around indoors when you want to conserve battery power.
• 100 to 300 lumens: Suitable for everyday household use, including hallways, cupboards and smaller spaces.
• 300 to 600 lumens: Useful for more demanding tasks and checking areas outside.
• 600 to 1,200 lumens: Better suited to larger spaces and situations where you need a stronger beam.
• 1,200 lumens and above: Useful when you need substantial light output and greater reach.

These are practical guidelines, not strict requirements. Beam shape, distance and brightness settings all affect how much light reaches the area you want to see.

I would choose a torch with several brightness settings rather than focusing entirely on its maximum lumen figure. Lower settings can provide enough light for many household tasks while helping to conserve battery power.

2. Battery runtime: how long will your torch last?

Runtime is one of the most important specifications to check before buying an emergency torch.

Manufacturers usually provide different runtime figures for each lighting mode. A torch might last only a few hours at maximum brightness but considerably longer on its lowest setting.

For example, the Ledlenser P5R (2025) offers:

• 750 lumens in Boost mode.
• 350 lumens for up to 1 hour in Power mode.
• 100 lumens for up to 4 hours in Mid Power mode.
• 25 lumens for up to 20 hours in Low Power mode.

The difference between these settings is important. If you only need to move around the house, you may not need the highest output. Using a lower setting can help the battery last longer.

When comparing torches, look at the runtime at a brightness level you would realistically use. A 200-hour runtime at 5 lumens is not directly comparable with 20 hours at 25 lumens.

3. Dual-power capability: why it matters during a power cut

This is one of the most important features I would look for in an emergency torch.

A rechargeable torch is convenient when electricity is available. You can charge it after use and keep it ready for the next time you need it.

However, what happens if the battery runs flat during a prolonged power cut?

Without electricity, you may not be able to recharge it. A power bank can help, but only if it has been charged beforehand and is compatible with your torch.

A dual-power torch gives you another option. It can operate using its supplied rechargeable battery or a compatible battery. If the rechargeable battery runs out, you can switch to the alternative battery rather than waiting for the electricity to return.

Some Ledlenser models offer this feature:

This is particularly useful for emergency preparation because compatible spare batteries are easier to store than relying entirely on a charged power bank.

Always check the manufacturer's instructions for the correct battery type. Also make sure you have the alternative batteries available before an outage occurs.

4. Rechargeable or battery-powered: which is better?

Both have advantages, and I would not recommend relying entirely on one type.

Rechargeable torches

These are convenient for regular use. You can charge them between uses and avoid buying batteries every time the power runs low.

USB-C charging is particularly useful because compatible cables and power sources are widely available. Some models can also be recharged using a suitable power bank.

The Ledlenser rechargeable torch range includes different sizes and output levels for household use, outdoor activities and more demanding tasks.

The drawback during a power cut is that you may not have a way to recharge the torch once its battery is depleted.

Battery-powered torches

A battery-powered torch can be a straightforward backup. Keep suitable spare batteries with it and replace them when required.

Models such as the P5 (2025) and P3 (2025) use standard batteries, so they do not depend on being charged before use.

The battery-powered torch range includes options with different battery types and brightness levels.

Dual-power torches

These combine rechargeable convenience with the option of using batteries.

For an emergency kit, I would give these particular attention. You can recharge the torch when electricity is available, but you also have an alternative if the power remains off.

5. Beam distance and focus

Beam distance tells you how far a torch can project light under specified test conditions. It is different from brightness, and a longer beam distance does not automatically make a torch better for indoor use.

A focused beam is useful when checking a garden, driveway or outdoor space. A wider beam is generally more practical when lighting the area immediately around you.

Some Ledlenser torches use the Advanced Focus System, which allows you to adjust the beam between a focused spot and a wider flood.

For example, the P5R (2025) offers up to 750 lumens and a maximum beam distance of 280 metres. Its adjustable focus makes it suitable for different situations, from close-range tasks to checking areas further away.

If you regularly need to see across larger outdoor spaces, our guide to long-range torches in the UK explains the factors worth considering.

6. Water resistance and durability

A power cut may happen during poor weather, and you may need to use your torch outside. Water resistance is therefore worth considering, particularly if you plan to keep your emergency torch in a car, shed or outdoor equipment cupboard.

Check the IP rating rather than relying on general descriptions such as waterproof or weather-resistant.

The first number relates to protection against solid objects such as dust, while the second relates to protection against water. Different ratings provide different levels of protection, so check the manufacturer's stated conditions rather than assuming every water-resistant torch can be submerged.

A durable body is also useful if the torch is likely to be carried regularly or stored with other emergency supplies.

7. Ease of use in the dark

A torch can have excellent specifications and still be frustrating to use if its controls are difficult to operate.

Think about how you would use it during an actual power cut. You may be trying to find it in a drawer, operate it without much light or carry it while helping someone else.

Look for:

• A straightforward switch that is easy to locate.
• Controls that are simple to operate without looking at them.
• A comfortable grip.
• A manageable size and weight.
• A way to store the torch somewhere accessible.

If several people in your household may need to use the torch, straightforward controls are particularly important.

Best Ledlenser torches and lanterns for power cuts

The best emergency lighting setup does not need to be complicated. I would start with a reliable handheld torch, add a dual-power backup and then consider a lantern or head torch depending on the needs of your household.

These are the Ledlenser models I would consider for each purpose.

1. P5R (2025): best dual-power handheld torch

It offers up to 750 lumens and a 280-metre beam, but its biggest advantage for emergency use is its dual-power design.

The supplied rechargeable battery charges through USB-C. If charging is unavailable or the rechargeable battery runs out, you can use a standard AA alkaline or compatible AA NiMH battery instead.

Key specifications:

• Maximum output: 750 lumens.
• Maximum beam distance: 280 metres.
• Power: 350 lumens for up to 1 hour.
• Mid Power: 100 lumens for up to 4 hours.
• Low Power: 25 lumens for up to 20 hours.
• Battery: Rechargeable 14500 Li-ion or AA alkaline/NiMH.
• Charging: USB-C.
• Water and dust protection: IP68.
• Weight: 99g.

The P5R is compact enough to keep in a kitchen drawer, hallway cupboard or emergency kit. Its adjustable beam also makes it useful outside the home.

It offers a useful balance of brightness, portability and emergency battery flexibility.

For a power-cut kit, I would keep at least one pack of compatible AA batteries with it. That way, you are not relying entirely on the rechargeable battery.

2. HF4R (2026): best dual-power head torch

A handheld torch is useful, but there are situations where you need both hands free.

You might need to carry supplies, find something in a cupboard, prepare food or complete a household task while the lights are off. A head torch directs light towards the area you are looking at without requiring you to hold it.

Key specifications:

• Maximum output: 650 lumens.
• Maximum beam distance: 130 metres.
• Low Power: 20 lumens for up to 45 hours.
• Mid Power: 100 lumens for up to 10 hours.
• Standard Power: 400 lumens for up to 3 hours.
• Battery: Rechargeable polymer battery or AAA batteries.
• Charging: USB-C.
• Water and dust protection: IP67.
• Weight: 92g.

The HF4R also offers spot and flood lighting, allowing you to switch between longer-distance visibility and close-range illumination.

It is a practical addition to a household emergency kit. Keep compatible AAA batteries with it so you have another power option if recharging is not possible.

3. ML6: best lantern for lighting a larger area

A handheld torch directs light towards a particular area, but it is not always the best option when several people need to move around the same room.

Key specifications:

• Maximum output: 750 lumens.
• Low Power: 20 lumens for up to 70 hours on the standard Cool White version.
• Standard Power: 550 lumens for approximately 4 hours.
• Battery: Rechargeable 18650 Li-ion.
• Battery capacity: 3,200mAh.
• Charging: Magnetic charging system.
• Power bank: USB output for compatible devices.
• Water and dust protection: IP54 on the standard Cool White version.
• Weight: 280g.

One particularly useful feature is its power bank function. The ML6 can charge a compatible mobile phone or another device through its USB output.

This can be helpful during a power cut when you need to keep your phone available for important calls and updates. However, charging a phone will use some of the lantern's stored energy, so you will need to balance lighting and charging needs.

Is the ML6 dual power?

No. The standard ML6 is rechargeable and does not accept ordinary AA batteries.

The ML6 Connect WL has a replaceable 18650 rechargeable battery, which means you can carry a fully charged spare. However, this is not the same as being able to use standard batteries.

I would still consider the ML6 a useful part of an emergency lighting setup, but I would pair it with a dual-power handheld torch or lantern so you have another option if its battery runs out.

4. ML4: best compact dual-power lantern

It delivers up to 300 lumens and provides general area lighting in a compact design. Its main advantage for power-cut preparation is its dual-power capability.

The ML4 runs on the supplied rechargeable 14500 Li-ion battery or a standard AA alkaline battery. This gives you an alternative if the rechargeable battery is depleted and you cannot access electricity.

Key specifications:

• Maximum output: 300 lumens.
• Low Power: 5 lumens for up to 45 hours on the Cool White version.
• Power: 150 lumens for up to 8 hours.
• Boost: 300 lumens for up to 2.5 hours.
• Battery: Rechargeable 14500 Li-ion or AA alkaline.
• Charging: Magnetic contact charging system.
• Water and dust protection: IP66.
• Weight: 71g.

The ML4 is not intended to light an entire room at high brightness. Its lower settings are more suitable for ambient lighting, while the higher settings provide more light for close-range tasks.

It is a useful compact option for an emergency kit, particularly if you want a lantern that can switch to an ordinary AA battery.

5. P3R: compact dual-power backup torch

Not every backup torch needs to be large. Keeping a compact light with your keys or in a bag means you have another source of illumination if the main household torch is elsewhere.

Key specifications:

• Maximum output: 200 lumens.
• Maximum beam distance: 130 metres.
• Low Power: 20 lumens for up to 8 hours.
• Mid Power: 80 lumens for up to 2.5 hours.
• Power: 200 lumens for up to 1.5 hours.
• Battery: Rechargeable 10440 Li-ion or AAA alkaline/NiMH.
• Charging: USB-C port built into the rechargeable battery.
• Water and dust protection: IP54.
• Weight: 41g.

Its small size makes it convenient to keep with your keys, but I would treat it as a personal backup rather than the main torch for lighting your home.

6. P5 (2025): straightforward battery-powered backup

It runs on a single AA alkaline battery and provides up to 200 lumens. You can keep spare AA batteries with it and replace the battery when required.

Key specifications:

• Maximum output: 200 lumens.
• Maximum beam distance: 170 metres.
• Low Power: 20 lumens for up to 8 hours.
• Mid Power: 80 lumens for up to 3.5 hours.
• Power: 200 lumens for up to 2 hours.
• Battery: One AA alkaline battery.
• Weight: 80g.
• Water and dust protection: IP54.

The P5 (2025) is a useful option to keep near a back door, in a car or in a household emergency kit.

It is important to distinguish between battery compatibility and dual power. The P5 (2025) can use compatible AA NiMH rechargeable batteries, but these need to be charged separately. It does not have the built-in rechargeable battery and charging system found in the P5R.

7. P3 (2025): small battery-powered keyring torch

The P3 (2025) is another useful backup if you want a small torch that is always close at hand.

It runs on a single AAA alkaline battery and delivers up to 130 lumens. Its keyring attachment means you can keep it with your house keys or attach it to a bag.

Key specifications:

• Maximum output: 130 lumens.
• Maximum beam distance: 110 metres.
• Low Power: 20 lumens for up to 6.5 hours.
• Mid Power: 60 lumens for up to 4 hours.
• Power: 130 lumens for up to 2.5 hours.
• Battery: One AAA alkaline battery.
• Weight: 43g.
• Water and dust protection: IP54.

The P3 (2025) is the most affordable option in this product selection. It is not a replacement for a full-size household torch, but it is useful to have as a small personal backup.

Which Ledlenser torches offer the longest runtime?

If runtime is your main priority, it is worth looking beyond the models above.

Two models stand out in the handheld and head torch categories.

Longest-runtime handheld torch: P7R (2025)

The P7R (2025) offers up to 80 hours on its 25-lumen Low Power setting. At 450 lumens, it provides up to 5.5 hours of runtime.

Key specifications:

• Maximum output: 2,000 lumens.
• Maximum beam distance: 320 metres.
• Low Power: 25 lumens for up to 80 hours.
• Mid Power: 450 lumens for up to 5.5 hours.
• Standard Power: 1,200 lumens for up to 2.5 hours.
• Battery: Rechargeable 21700 Li-ion.
• Charging: USB-C.
• Water and dust protection: IP68.
• Weight: 197g.

At 197g, the P7R (2025) is compact for the output it delivers, so it works as a powerful handheld torch for home and outdoor use. Its long low-power runtime makes it worth considering if you want a torch that can keep going through a prolonged power cut.

It is rechargeable only, so I would pair it with a dual-power backup rather than rely on it as the household's only emergency light.

Longest-runtime head torch: H15R

The H15R also offers up to 200 hours on its 15-lumen Low Power setting. It provides substantially more output when required, reaching up to 3,000 lumens in Boost mode.

Key specifications:

• Maximum output: 3,000 lumens.
• Maximum beam distance: 450 metres.
• Low Power: 15 lumens for up to 200 hours.
• Mid Power: 800 lumens for up to 8 hours.
• Standard Power: 1,600 lumens for up to 6.75 hours.
• Battery: Rechargeable 21700 Li-ion battery pack.
• Charging: USB-C.
• Water and dust protection: IP67.
• Weight: 387g.

I would include the H15R as a premium alternative rather than a main recommendation for someone putting together an affordable emergency kit.

Like the P7R (2025), it is rechargeable only. It should therefore be supported by a separate battery-powered or dual-power light.

Torch comparison: brightness, runtime and battery type

The following table brings the main recommendations together. Runtime figures refer to the manufacturer's stated low-power settings, so the brightness level should always be considered when comparing them.

The H15R has the longest stated runtime in this selection, followed by the P7R (2025), but their low-power settings provide less light than the higher settings.

The P5R and HF4R offer a different advantage: if you cannot recharge them, you can switch to compatible batteries. For a prolonged power cut, that flexibility may be more useful than maximum runtime alone.

How to put together a practical household emergency lighting kit

You do not need to buy every model in this guide. The aim is to make sure you have enough lighting for different situations and that at least one of your lights can keep working if charging is unavailable.

Here is how I would approach it.

You can adapt this to the size of your household. A smaller home may only need a handheld torch, a dual-power backup and a lantern. A larger household may benefit from keeping additional lights in different rooms.

The most important thing is to avoid putting all your emergency lighting in one place. If someone takes the main torch outside or it runs out of charge, another person should still be able to find a working light.

How to prepare your torches before a power cut

Buying a suitable torch is only the first step. You also need to make sure it is ready when you need it.

I recommend checking the following every few months:

• Check the charge: Rechargeable torches should be checked regularly and charged according to the manufacturer's instructions.
• Keep compatible spare batteries: Make sure you have the correct AA or AAA batteries for your dual-power and battery-powered models.
• Test the torch: Switch it on and check that all the lighting modes work properly.
• Check the charging cable: Keep the correct cable somewhere you can find it.
• Choose a storage location: Keep your emergency torch somewhere accessible and make sure everyone in the household knows where it is.
• Check the battery condition: Follow the manufacturer's storage instructions and avoid leaving depleted batteries inside lights for long periods.
• Check your wider emergency supplies: A torch is only one part of a household emergency kit.

The UK Government's Be Ready guidance recommends preparing supplies to help your household manage disruption for up to three days. Alongside a torch and spare batteries, consider keeping a charged power bank, a battery-powered or wind-up radio, drinking water, non-perishable food and essential items.

For more detailed household preparation advice, our guide to what to keep at home for a power cut covers the other supplies worth having ready.

Frequently asked questions about torches for power cuts

What is the best torch for a power cut?

The best torch depends on how you intend to use it. A rechargeable handheld torch with adjustable brightness is a good all-round choice, but I would also keep a dual-power model that can use batteries if recharging is unavailable. The P5R is a useful option because it combines rechargeable convenience with AA battery backup.

Which Ledlenser torch has the longest runtime?

The P7R (2025) offers up to 80 hours on its 25-lumen Low Power setting among the handheld torches in this selection. The H15R offers up to 200 hours at 15 lumens as a head torch. The ML6 Connect WL offers up to 200 hours at 5 lumens, but this is a lantern and its lowest setting provides less light.

Which Ledlenser head torch has the longest runtime?

The H15R offers up to 200 hours at 15 lumens on Low Power. It is a premium rechargeable head torch. If having an alternative battery source is more important than maximum runtime, the HF4R is a more suitable dual-power option.

Which Ledlenser torches are dual power?

The P5R (2025) can use its rechargeable battery or standard AA alkaline/NiMH batteries. The P3R uses its rechargeable battery or AAA batteries, while the HF4R accepts its rechargeable battery or AAA batteries with the supplied adapter. The ML4 can use its rechargeable battery or a standard AA alkaline battery.

Always check the product instructions for the correct battery type.

Is the ML6 lantern dual power?

No. The standard ML6 is rechargeable and does not accept ordinary AA batteries. The ML6 Connect WL has a replaceable rechargeable 18650 battery, so you can carry a charged spare, but it does not offer the same battery backup as the ML4.

Is the ML6 useful during a power cut?

Yes. The ML6 provides up to 750 lumens of area lighting and has a built-in power bank function for charging compatible devices. It is useful when several people need light in the same room. However, because the standard version is rechargeable only, I would pair it with a dual-power torch or lantern.

Is the ML4 lantern suitable for a power cut?

Yes. The ML4 provides up to 300 lumens and can run on either its rechargeable 14500 battery or a standard AA alkaline battery. Its alternative battery option makes it particularly useful when you cannot recharge during an outage.

Are rechargeable torches better than battery-powered torches?

Rechargeable torches are convenient for regular use because you can charge them between uses. Battery-powered torches offer the option of replacing batteries when needed. Dual-power models combine both options and can be especially useful during an extended power cut.

How many lumens should an emergency torch have?

For general household use, a torch with around 100 to 300 lumens can be sufficient for many close-range tasks. If you also need to check outdoor areas or illuminate larger spaces, consider a higher-output model with adjustable brightness.

Can I use a power bank to charge my torch during a power cut?

Some rechargeable torches can be charged from a compatible power bank. Check the torch's charging requirements before relying on this option, and make sure the power bank is charged before an outage. Remember that using a power bank for your torch will reduce the charge available for other devices.

Should I keep more than one torch at home?

Yes. Keeping more than one torch means you have a backup if the main one runs out of charge or is being used elsewhere. A combination of a handheld torch, a dual-power backup and a lantern is a practical starting point for many households.

What should I look for when buying an emergency torch?

Prioritise useful battery runtime, adjustable brightness, straightforward controls and a suitable charging or battery system. For an extended power cut, check whether the torch can use batteries if you cannot recharge it.

Be ready before the lights go out

A power cut is difficult enough without having to search the house for a working torch or discover that its battery is flat.

The best approach is to prepare a small lighting setup that covers different needs. A P5R provides a useful main handheld light with AA battery backup. The HF4R gives you hands-free lighting with AAA backup, while the ML6 can illuminate a larger space and provide some additional phone-charging capacity.

A compact ML4, P3R, P5 (2025) or P3 (2025) can provide another source of light in a bedroom, car or emergency kit. If maximum runtime is your priority, the P7R (2025) and H15R offer up to 80 hours and 200 hours respectively on their lowest settings, although they should be supported by a battery-powered backup.

You do not need the brightest or most expensive torch. Choose lights that suit your home, keep compatible spare batteries available, check rechargeable batteries regularly and make sure everyone knows where the emergency lighting is stored.