Each light is manufactured with 1 x RGB LED bulb, 2V 40mA amorphous silicone solar panel & crackled glass ball.A stainless steel pole with plastic spiked end is supplied for easy insertion into the ground.They will work for 6-8 hours on a full charge of 8 hours sunshine (approx) & require 1 x AA 600mAh NiMH rechargeable battery (supplied).They are easy to install with no wiring or electricity required.