I used the puck lights to replace smaller cool white puck lights that were used as under cabinet kitchen lighting. The lights are a warm white and can be dimmed or brightened with remote. Batteries were included with the lights as well as screws and adhesive stickers to mount them. The lights have been up for 2 days and so far 2 of the adhesives failed. I have had them on for 10 hours and the light is still as bright as when i first turned them on. Lights are easy to operate and are really handy as extra lighting and as a night light.