Wattage: 4W/5W/6W Input Voltage: 220V Lumens: 400LM / 500LM / 600LM LED Chips: 2835 SMD Epistar Base Type: E27/GU10/MR16 Lifespan: 6000hours LED Quantity: 36pcs / 54pcs / 72pcs Energy Electricity Saving with Higher-level Efficiency. 1W LED can replace 5W HPS,HID,MH,Incandescent & Halogen Lamp Full spectrum that is necessary & critical for plants growing & flowering (from seeding to harvest) 450nm Blue & 700nm Red is accelerating leaf growing 650nm Red is promoting flowering Perfect for small Grow Box,Grow Tent, DIY Hydroponics,Bonsai,Garden... etc Comfortable, Humanistic & High-performing Size: ¢47*H54mm Voltage: 220V