Key Ring LED Carabiner, retail $3.99 (
Manufactured by (unknown) for Evolution (No URL known)
Last updated 05-10-04

The Evolution brand Key Ring LED Carabiner is a small LED flashlight that looks like a carabiner that climbers use - though it's marked on the front of the package and on the flashlight itself "NOT FOR CLIMBING".

It can be attached to your keys, backpack, cellular telephone, GPS receiver, etc. with a spring-loaded "gate" built into it or with the split ring (removeable, if desired).

It is powered by two CR1220 lithium coin cells, and has a momentary pushbutton switch to activate a yellow LED.

I don't know how to properly pronounce "carabiner", so I don't know with absolute, positive, 100% certainty if I should pronounce this as "kerra byner" or "kerra beener".


The flashlight is ready to use as soon as you remove it from its retail package. Slitting down one side of the package with a knife was sufficient to remove the flashlight and the retail card - which contains battery changing information on the back.

To use the flashlight, firmly press and hold down the rubberised pushbutton in the center of the flashlight's round body, and it will come on for as long as you hold the button down. Release the button to turn the flashlight off.

There is no constant-on mode available; please do not look for or expect to find one.

The carabiner flashlight can be clipped to a keyring, duffle bag, backpack, etc. using the spring-loaded "gate" on the carabiner part of the flashlight's body. As I understand, this "gate" is on the opposite side of the "gate" on a real carabiner; perhaps this was done so that you could not confuse the two and get in trouble later when the flashlight becomes broken under the load. You must NOT use this as a climbing device; I cannot emphasise this enough.
This flashlight also comes equipped with a medium sized split ring; you can affix it to your existing keychain with this, or affix keys to the flashlight's keyring.

I do not yet have the necessary tool to do a battery change, so this section of this web page will stay empty for the time being.

As I stated before, you must NOT use the flashlight as a climbing device; I simply cannot emphasise this enough. It is meant for use as a flashlight, not as a climbing device.

Having said that (again), the flashlight *does* appear to be reasonably sturdy. Other than having an exposed LED that can become scuffed, scratched, or otherwise marred; ordinary flashlight accidents should not be enough to do it in.

The flashlight does not appear to be very water-resistant. There are no O-rings sealing the two case halves together, and a suction test performed at the LED-end did show the flashlight admitted plenty of air, probably from the case half interface. I believe it has at least very light splash-resistance, but if it falls into water, the inside of the unit will readily flood. You can either take it apart (as you might for a battery change) and set the parts in a warm, dry place for a day or so, or attach a sturdy string to the carabiner portion and rapidly whirl it over your head. If it fell into seawater or if something peed on it, douche the parts out with fresh water before setting them out to dry.

The pushbutton requires more pressure than might be desired, and the LED flickers a bit. Yes, I consider these to be deficiencies in this flashlight.

Beam photo at ~12".
Beam is significantly less reddish than this photograph depicts.

Measures 3,240mcd on a Meterman LM631 light meter.
Light has a more yellow color to it than most other yellow LEDs.

Test sample was purchased at Wallgreens on 01-21-05.

UPDATE: 00-00-00

Pleasant appearance
Light color is yellower than usual for a yellow LED

Not very water-resistant
Tested unit not all that bright

    MANUFACTURER: Unknown mfg. for Evolution
    PRODUCT TYPE: Keychain flashlight
    LAMP TYPE: 5mm yellow LED
    No. OF LAMPS: 1
    BEAM TYPE: Irregular wide spot
    SWITCH TYPE: Pushbutton momentary on/off on top of flashlight body
    BEZEL: None
    BATTERY: 2x CR1220 cells
    CURRENT CONSUMPTION: Unknown/unable to measure
    WATER RESISTANT: Very light splash-resistance only
    ACCESSORIES: Batteries, medium split-ring
    WARRANTY: Unknown/not stated


    Star Rating

Key Ring LED Carabiner *

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