EagleLight Blue Hydroponic Grow Light - PAR38 LED Flood Light EagleLight's Blue PAR38 screws in any standard light socket and it works from 85 volt to 260 volt. No ballasts or transformer is required. It runs at a much cooler temperature than most other inefficient plant lights. This more controlled running temperature reduces the need to water so often and keeps rooms with pla This state of the art LED plant light is extremely energy efficient