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Olight i3UV EOS Ultraviolet Keychain Flashlight (Green) EXPIRED
Note, click on register and create your account or log in to receive the offer. The flashlight will be free (+$5 S&H) when added to cart.
Editor's Notes & Price Research
The i3UV is an extremely compact ultraviolet flashlight. Powered by a single AAA battery, this ultra-compact designed UV black light emits 395 nanometer wavelength. Made of durable aircraft-grade aluminum, making it strong and long lasting.The versatile i3UV can be carried along to detect invisible stains, finding scorpions and minerals, etc. Offer limited to 1 per customer. -persian_mafia
They have offered this in the past, and I know its not technically free since you pay $5 shipping, but these are well built little lights and they make great gifts.
In the past shipping was fairly fast as well.
Happy Mother's Day and Stay Safe!
Useful for examining currency, documents (passports), minerals and rocks, as well as science fun. However, the shorter wavelength version works better (though the LEDs are less efficient):