1、The plant light with cooling fans on the back ,built‑in aluminium heat‑sink, excellent‑speed heat dissipation. It does not produce any noise and is suitable for indoor quiet environments. 2、Energy saving LED grow lamp, unique design of reflective cup and 120 degree optical lens for higher light‑gathering effect, low light loss, high light utilization. 3、4000K COB chip, wavelength range is 380nm~880nm, great for all kinds of indoor plants, vegetables and flowers at all growth stages. 4、Widely used in plant factory, basement, greenhouse planting, flower planting, indoor garden, water soluble breeding, pipe cultivation, vegetable planting, etc. 5、Adopts hanging design, small size and convenient, you can adjust the distance from light and plant , distance is 30‑100 cm ,the effective covering area is 0.5‑5㎡. 1 x Lamp4 x Hook1 x Instruction Manual Item Type: COB Plant LampMaterial: Aluminium AlloyColor: Silvery WhiteLamp Chip Diameter: Approx.5cm / 2.0inShell Size: Approx. 9.4x 9.4x5cm / 3.7x 3.7x 2.0in Cable Length: Approx. 1.1m/ 3.6ftNumber of Lamp Beads: 1pcs COB lamp beadsVoltage: EU AC170-330V 50-60hzLight Color: Pink light/4000kService Life: ≤100000 hoursPower: 300WWavelength: 380 nm-880 nmWorking Environment: -20℃-50℃, 45%RH~90%RHWeight: Approx.511g/18oz