I destroyed the switch of by BL-8498 FTT flashlight (SK-98 clone) after maximizing the current of the light by putting copper braids at all its springs. The switch appeared to be burned/melted so I had to look for a similar switch to make it work again. The other switches I had fits very loosely and eventually suffered the same fate - melted metal points. When I got this switch, it fits perfectly at my flashlight's tail cap - with no play - ensuring that the metal parts are in full contact with each other. I have tested my light last night using it extensively for more than 30 mins at a time and this switch simply performed beyond my expectations.

I ordered 2 of these last 22 May 2013 and I got my items today, 22 days after closing the order. I've been reading good things about the Convoy flashlights and particularly this C8 and I did not realize how good it really was until I had one in my hand. I have an UltraFire C8 and the latter is miles away on all aspects - UI, build quality, finish, output, throw - except the price. I've also ordered AMC7135s with these and I can't wait to push this lights to the limits. Thank you FastTech!

I got this light this noon 24 days after making my order and it arrived in pristine condition - very smooth, very nicely made, and very cute. I immediately tried the TrustFire 16340s which I ordered with this light and behold, it packed a powerful beam. Powerful for its size really. In addition to that, I also found out that the lights tail has a strong magnet - which is not stated in the specs but which is a great add-on! I've been contemplating on getting the Olight Baton S10 because of this (magnet) feature and now that I have the UF-K21, I see no need to get it anymore. This feature will he very useful if I do repairs or inspections on my car as the light can be easily attached to the hood. Thank you FastTech for this light!

I ordered one of these last 14 August and got my Eva last 08 September. The first thing I noticed when I opened my FastTech parcel was that my little flashlight was nicely made. I also noticed that the emitter of my Eva was XP-G2 and not XP-G and this was a nice mistake if indeed it was a mistake. :-) When I placed an alkaline AAA in, it made a bright light light. However, the brightness of the light seems to get lost when aimed farther. To be sure of its performance, I took some readings and here they are: Tailcap reading = 830 mA @ 1.468 volts = 146 lumens (XP-G2) Lux reading at 6 meters = 11 lux = 396 candles = 40 meters throw. It might not be good at throw but its not a big deal since it was not purchased to be one anyway. It will be part of the key holder for my car keys - and I don't need to shine it 20 meters away to help me get inside my car at night.:-) Over-all I'm very happy with my Eva and thanks for this light FastTech!

My calculator has been dormant for a while because I can't find a good source for LR44 cells and I was glad that I ordered these from FastTech. It not only brought my calculator back to life, I also found out that it works for my other gadgets as well like my bike blinkers. Thanks FastTech.