Specification:
Material: aluminum Light source: COB
Colour: full spectrum Color wavelength: 380-840nm Power:20w/30w Input voltage: 220-277V
Size: 53mm*39mm/53mm*39mm Lighting angle: 120 Package included:1pcs ac 220v led grow chip Notice: It must need a heatsink aluminum for cooling, do not light it without heatsink aluminum.