They put out a lot of light and turn on and off automatically in the presence of light or the lack thereof.
Great fun to have and I've used them as a flashlight, as I live on a farm.
Be careful of looking directly at them from a close distance as they are BRIGHT.
They are white and bright and you set the light sensor with a small screw driver or ceramic tip tweaker - easythey have no instructions so I can not figure out how to dim themmaybe they do not have a dimming functionI wish they had a instruction sheet.
5 star for product and 0 star for quality control.
I ordered the dimmable version with on / off touch as advertised.
However, what I received were 5 night lights that come on at dusk and goes off at dawn.
Have no idea why people think this is a great item.