HQRP 28W 450 Blue LED Spectrum Hydroponic Plant Grow Light Panels / Lamps + Hanging Kit + UV Meter HQRP&reg; LED Plant Grow Panel Lamp System plus HQRP&reg; UV Chain / UV Health Meter; 225 LED's; 225 Blue LED lights (465 nm wavelength); Material/Dimensions: Thermoplastic body, Die-cast Chrome Circuitry board; 12?" (30.5cm) square panel: 1.25" (3.175 cm) thickness, Power Chord length: 48"; Electrical Consumption: 14 Watt Power, Working Voltage: 110V to 220V; 200 Days Warranty.