Lithium Micro Light

Lithium Micro Light, retail $6.00 (
Manufactured by Emissive Energy Corp. (5 Division St. Warwick RI 02818)
Last updated: 01-13-07

LED Light

The Lithium Micro Light is a small, arrowhead-shaped single LED flashlight.
Two CR2016 batteries power a white LED bulb, all packed inside a Valox & T.P.E. plastic case.

The Lithium Micro Light comes ready to use right out of the pack. Unlike other products packaged in the manner this light is, this package is actually easy to open.
Give the light a firm squeeze to get light, and let it go to get anti-light (darkness).
Things just don't get much simpler.

This light uses a pair of CR2016 lithium coin cells. To change them, you will need a small screwdriver or other sharp instrument. Near the tail end of the light, you will see a notch between the grey cover and the black case. Put the screwdriver in the notch at a 45 angle and carefully pry the grey cover up. This will expose the batteries, which you can dump. Lay in two new batteries, positive (flat) side facing up, and push the grey top back on until it fits flush with the body.

A fresh set of batteries should last 12 hours, longer when the light is used intermittently.

The Lithium Micro Light seems to be built pretty sturdily, and won't break if dropped, thrown, or accidentally stepped on.
It is not waterproof though, so if liquid should get in, take it apart (see the section on batteries), empty the contents and allow to dry.

The LED is countersunk inside the light, providing some valuable protection from scratches or breakage.

I am not happy with the push-only operation. You have to give it a pretty healthy squeeze, and hold it that way to keep the flashlight lit. For those with weaker hands, this may not be the most thoughtful or appropriate gift to find in your stocking on Christmas morning. Choose one of the other micro lights with a steady-on function if you give micro flashlights as gifts to aging relatives. I can't keep it going for more than ten or fifteen seconds at a time before my fingers poop out and the light goes off.
Gently bending the LED lead upwards slightly with a pocket knife did remedy this somewhat, but I still miss a constant-on mode.

On the other hand, the no tools battery change might be enough to make up for the switch handicap.

The Lithium Micro Light comes with an odd keychain attachment. The instructions claim this as a "quick release" mechanism, but I don't see how. It isn't very intuitive or quick. But if you attach this to your keys, it will definitely stay there and the light will work when you need it.

As an everyday light, this one may not be as handy as some of the others, but it will work fine for short-term emergencies, for targeting that keyhole, or for looking for the wedding band that fell behind the toilet.

LED Light
Beam photo.

Spectrographic plot
Spectrometer plot of the LED in this flashlight.
This is of a BLUE LED Lithium MicroLight that a fan of this website sent, not a white LED one.
Ocean Optics USB2000 Spectrometer on loan from WWW.TWO-CUBED.COM.

The beam of this light is of the same shape and is nearly as bright as a Photon. It is useful for both those little household emergencies like changing a blown fuse, and for those everyday use like looking for your Betty Crocker cookbook in a dark closet or cabinet.

The inherently long life of lithium batteries makes this a good candidate for a first-aid kit or disaster preparedness canister, and having one hanging from the keyring means you'll always have a light that works when you need it to.

The case is very durable, with one small exception: the notch you use to pry the top off to change the batteries will start to become mangled as this notch is reamed out over time.
Mine is already showing visible damage after being opened just three times: once with a small Phillips screwdriver (this is where the heaviest damage occurred) and twice with a pocket knife.
A much smaller screwdriver, such as one of the smaller ones in an eyeglasses repair kit, should be used to open this light whenever possible.


Testing is currently in progress.

Any updates related to this review will be posted as they happen.

Bright, case is durable overall (see above), no tiny screws to screw with.

No 'constant on' function, upper cover can become mangled after repeated battery changes, strange keychain attachment.

          MANUFACTURER: Emissive Energy
          PRODUCT TYPE: Keychain type flashlight
          LAMP TYPE: LED, White, 5mm
          No. OF LAMPS: 1
          BEAM TYPE: Central hotspot with soft fall-off
          SWITCH TYPE: Momentary squeeze-on
          BEZEL: None
          BATTERY: 2 CR2016 lithium coin cells
          CURRENT CONSUMPTION: Unknown
          WATER RESISTANT: Light weather resistance only
          SUBMERSIBLE: No
          ACCESSORIES: Unusual "quick release" J clip
          WARRANTY: Unknown

                PRODUCT RATING:

                DURABILITY: 8
                BRIGHTNESS: 9
                USEABILITY: 4
                BATTERY LIFE: 7
                BATTERY AVAILABILITY: 4

                OVERALL SCORE: 32

Lithium Micro Light *

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