Zitrades LED Grow Lights 50W Flood Light for Indoor Plants Greenhouse Growing Lights Bulb for Hydroponic Systems Gardening Vegetables (Plant Light Bulb-8) Working Voltage: 10-16V DC Resists shock and vibration 90-Percent more efficient than incandescent and halogen T10,15-SMD3528 LED, tower, warm white, 10-16V DC Length: 38mm or 1.49 inch, Width: 12mm or 0.45 inch Depth: 6mm or 0.22 inch