How long does the light stay lit? What is the brightness of the LED? Doesn't say anything in the specs. Thx!

My lights stay on for several hours a night. If it is cloudy during the day the batteries may not fully recharge and that will affect their total time on. I don't know the lumens of the lights, but I'd consider them minimal, just bright enough to give a dim view of the walkway. If you are looking to replace a porch light with these you will be disappointed.

This solar cap has 4 LED bulbs that give off 2700K of warm light. These lights will typically stay on for 4-6 hours. It all depends on how much direct sunlight they get a day.