I was hesitant about this product, very hesitant. Most cheap motion lights such as these don't really work all that great, and the lifespan is always disappointing. I bought these to use as emergency lighting in a power outage rather than purchasing dedicated blackout bulbs due to the cost and ease of charging. I am not disappointed. Not even a bit.My bathroom has 6 vanity lights behind a translucent shade above the mirror, and I placed one of these below the bulbs, shining out of the translucent cover. I mounted the motion sensor on the wall next to the fixture, and set them to only come on in the dark, at the lowest time setting available. Now, when you walk into the room, it's a perfectly useable light all through the bathroom. It does kick on so quickly that you don't have time to turn on the light switch, and sometimes it kicks on when you're leaving and turn the main lights off. That's not a complaint, they last a fair amount of time between charges at the lowest time setting. To counter this, I turn them completely off sometimes knowing that if needed in a power outage, all I have to do is flip the switch and have automatic lighting. Otherwise, I let it turn on and simply charge it every few weeks to make sure it's ready. It detaches easily making charging a breeze. I'd almost consider trying to wire it so that it's always charging and still useable, but there aren't any plugs that close and I'm not sure how that would be for the battery. My only complaint is that the time settings jump from 15 seconds to 130, to 360. 15 is just a bit too low for actual usage as a bathroom light (I sometimes don't move a whole lot while peeing and it kicks off so I have to do a strange little dance so that it detects motion), and 130 seems excessively draining for a light I rarely use as the primary light. 360 is too much, and I don't think the battery could handle much activation at that length.Other than that, buy them. Wholeheartedly recommend, put them in your cupboard, your bathroom, hallway, closet, wherever. They're hideous to see the strips but you can see that when you purchase them, so hide them with a little effort and they're excellent lighting solutions.