Ledlenser K6R Safety: Keyring Torch and 100dB Alarm

The Ledlenser K6R Safety is a keyring torch with a built-in alarm, made to sit on your keys or clip to a bag so that light and a way to call for attention are always with you. It weighs 32g, measures 66mm by 30mm, and puts out up to 400 lumens on boost, with a 100dB alarm alongside¹. It is a small everyday carry light rather than a household emergency torch, and it is worth being clear about that before you buy one.

The torch has three lighting levels plus a strobe mode, a transport lock so it does not switch on in your pocket, a 2 meter drop test rating and an IP2X rating¹. It charges through a fold out USB-A connector, with no cable needed, and takes 180 minutes to reach a full charge¹.

This is a named product page for a model that is no longer sold new. If you are looking for a light for power cuts at home, a keyring torch of this size is a backup rather than a main light; see our guide to torches for the home for the wider picture. If you already own a K6R Safety, the sections below cover what it can do, how to charge and store it, and what support Ledlenser offers.

What the K6R Safety is and who it suits

The K6R Safety is a keyring torch with an alarm, described by the maker as ultra-compact yet powerful, with up to 400 lumens and a shrill alarm for emergency situations¹. It is designed to be carried, not stored in a drawer: the carabiner lets you attach it to a keyring, backpack or purse, so it goes wherever you go¹.

That makes it a sensible choice for a few specific situations. It suits someone who wants a light on their keys for dark car parks, unlit paths or a late walk home, and who values the alarm as a way to draw attention if they feel unsafe or need help. It suits a bag or glovebox as a spare, and it suits anyone who wants a light that is always charged and always with them rather than one that lives in a cupboard and is flat when needed.

It is less suited to being the main light for a power cut. At 32g and 66mm long it is small enough to mislay, and its run times are measured in hours rather than the longer stretches a household might want during an outage. For lighting a room or a staircase for an evening, a larger torch or a lantern is the better tool; our guides to lighting during a power cut and to lanterns set out the options. Think of the K6R Safety as the light you always have, with a bigger light kept at home for when the power goes.

The maker's own framing is worth quoting, because it sets expectations:

Light modes: 20 to 400 lumens, plus strobe

The torch has three lighting levels and a strobe mode². The levels are set out by the maker as follows.

Boost mode is described by the maker as a short burst of maximum power for when you need it most¹. It does not give a duration for boost, so treat it as a brief flash of light rather than something to rely on for a walk. Standard power is the setting for general use, and low power is the one to choose when you need the torch to last: 8 hours at 20 lumens is enough to find your way around a dark house or check a fuse box without draining the battery¹.

The strobe mode can be activated to make you easier to see and find¹. That is its purpose: being spotted, not lighting a path. Our guide to SOS and strobe modes explains when each is useful.

The beam is a cool white, with a colour temperature of 5000K to 8000K and a colour rendering index of 70 CRI, from a single LED¹. A CRI of 70 is modest, so colours will look a little flat under it. For finding a keyhole or a path that is fine; if you need to judge colours accurately, this is not the tool. Our explainer on lumens and beam distance covers what those figures mean in practice.

Built for pockets and keyrings: transport lock, 2m drop test and IP2X

Three features make the K6R Safety practical to carry every day.

• Transport lock. The maker says the lock protects against unintentional switching on¹. A torch that switches itself on in a pocket is flat when you need it, and an alarm that goes off in a bag is a nuisance; the lock prevents both.
• 2 meter drop test. The torch is rated to survive a drop of 2 meters¹. That covers the everyday knocks of life on a keyring, though it is a test rating rather than a guarantee against every fall.
• IP2X rating. The maker gives an IP rating of IP2X¹. This is the point to understand clearly: IP2X covers protection against fingers and similar objects, not water. It is not a waterproof rating. Keep the torch out of rain, puddles and sinks, and dry it before charging if it gets splashed. Our guide to IP ratings explains the scale.

The carabiner is the attachment point, and the maker says it lets you attach the torch easily to a keyring, backpack or purse¹. Clip it where you can reach it without searching, and check the clip is closed before you set off.

Cold and heat: rated from -20 to +40

The maker gives a working temperature range of -20 to +40¹. That is a wide band, covering a cold winter night and a hot car on a summer day, and it means the torch should work in the conditions a UK household is likely to meet.

Two practical points follow. First, the range is a working range, not a storage recommendation: leaving a torch in direct sun or in a very cold car for long periods is not the same as using it within the range, and batteries generally prefer to be kept at moderate temperatures. Our guide to charging and storing rechargeable torches covers storage in more detail. Second, if the torch has been somewhere very cold or very hot, let it come back towards room temperature before charging it.

Charging the K6R Safety safely

The torch charges through a fold out USB-A connector, which the maker says means it can be quickly and easily recharged with no cables required¹. You fold out the connector and plug it into a USB socket or a suitable USB charger.

A full charge takes 180 minutes¹. The charging indicator lets you know how much battery you have left¹, so you can see progress as it charges and check the level before you rely on it.

The battery is a built-in 400mAh pack¹. Because it is built in, there is nothing to swap out; the torch is charged, not fed with AA or AAA cells. That makes it simple to live with, but it also means a flat torch needs time plugged in before it works again, which is worth remembering if you are heading out and the indicator is low.

On charging safety, follow the maker's own instructions for its product: use the fold out connector as intended, do not force it, and do not charge a torch that has got wet until it is dry. Our guide to USB charger safety explains why the charger you use matters, and our page on using a torch while charging covers that question.

Support, warranty and registering your torch

The standard warranty on Ledlenser's K-Series range is 2 years, covering defects in manufacturing¹. Ledlenser also states that its standard 2 year warranty can be extended by a further 5 years with online registration, up to 7 years, covering defects in manufacturing³. The maker's own pages do not put the two statements in exactly the same terms, so if the length of cover matters to you, check the warranty terms at the point of registration.

Registration is the step that unlocks the longer cover. Ledlenser's guidance is to register your light for extended peace of mind and long-term reliability⁴. Do it soon after purchase, while you still have the details to hand.

Ledlenser is engineered in Germany, and the maker says it offers friendly, knowledgeable support from its UK team whenever you need assistance⁴. It also advertises fast delivery and free UK returns⁴. For the wider range, see our Ledlenser brand page.

Where the K6R Safety fits in a household lighting plan

A keyring torch is one layer of a lighting plan, not the whole of it. The K6R Safety earns its place because it is always with you: 32g on a keyring, a 100dB alarm, and a light that reaches 80 meters on boost¹. That is the light you have when the power goes while you are out, or when you are walking home and want to be seen.

For the home itself, keep a larger light where you can find it in the dark. Our guide to where to keep torches explains why the cupboard under the stairs is the wrong place, and our power cut checklist sets out what to have ready. If you are choosing between a torch and a head torch for jobs in the dark, our comparison of torch or head torch will help.

The K6R Safety is no longer sold new, so if you want one, look for remaining stock rather than expecting to order direct. If you already own one, keep it charged, keep it clipped where you can reach it, and register it for the longer warranty.