So far this is one of the better lights I have owned. The white light is very bright and good at least to 100 yd which is as far as I have tried it so far. The green is good if you do not want a lot of bright light or if you want to spotlight varmints within 30 yds. It is not good much farther than that. It is fairly compact and lightweight so it does not add a lot of weight to your gear. I have only had it for a few weeks, but so far am pleased.
I bought this to be used in the early mornings as we head out to our duck hunting spot for the day. That can be either on local lakes or rivers in our jon boat. I expected this light to be much brighter than it is. I had originally bought it to replace the cheaper light I had bought somewhere else. Both are about the same size, which I like as I can easily place them in my blind bag (unlike normal spotlights that admittedly throw off much more light, but are also much larger). Unfortunately, this light is nowhere near as bright as the cheaper one, so now it is just another light I keep around the house.