These lights really brighten a room in your house but are really intended for outdoor use I'd guess. Keep the puck in the window for daytime charging and they are good to go for the night. I gave one to a friend to outline their sea kayak. I told them not to get them wet because I don't think the salt water will be too good for them. They look really cool though! Great lights! We have string lights with LED's on our house/garage walkway and these will be great this summer camping and in the car! We sleep in the back of our CRV with the rear seats out. We can line them around the inside roof from the hook spots we have made. SUPER bright. OR in a tent for even lighting vs beams from a headlamp.