Another very happy Fenix E01 user here. I've been carrying this light for about 2 years now, and it's been great. Not one of the brightest lights, but insane long run times on battery, extremely reliable, and enough light for real world use in most situations you need to see. The back shelf in a basement storage room, under a car seat, working under the kitchen sink. I even use it as the light for the dogs last walk of the night in the woods out back. Bright enough to see the trail for about 30 feet. If I need more light, I have a AA minimal LED that has great throw in the woods. But so far, in 2 years, I haven't run into any situation the little E01 hasn't been enough light.