Our keychain size Blue Brilliance Thin Light Kit produces a bright blue light from a mini 3mm Blue LED. Use it as a mini flashlight to illuminate keyholes, find light switches or avoid obstacles in the dark. Very nice quality reliable kit is only 2 1/4” L x 1” W x 1/4” thick. Uses 2 long-life high capacity lithium coin batteries (included) that can provide up to 10 minutes of usage per day for every day for a year (of course, if you don't use it each day for 10 minutes the batteries will last even longer).

Easy to build kit features reliable pushbutton momentary switch, batteries, blue LED, PC board and instructions. Skill Level 1