Dual-timer, you only need to set the timer just once. 3 timer modes - 4 hours, 8 hours and 12 hours. 5 Dimmable Luminance Modes 3 options to choose the lighting quantity and Red/Blue-Ray switch. Made of Aluminum & PVC, lightweight and durable with good heat dissipation,Low Consumption and Environment Friendly. IP66 waterproof, no need to turn it off when watering the plants. 360 flexible goosenecks make it able to adjust any direction or the lighting area. With an adjustable clip which max to 2.5 inch for you to fix it on most place stably. BLUE LIGHT--- influences the formation of chlorophyll, enabling the plant to intake more energy. Plants that receive plenty of blue light grow with strong, healthy stems and leaves. This process is called photomorphogenesis. RED LIGHT--- contributes to the optimal development. It's essential to a plant's early life for seed germination, root growth, and bulb development. It also makes the plant yield better results when flowering. LED Quantity: 18 pcs(12 Red & 6 Blue) / 36 pcs(24 Red & 12 Blue) / 54 pcs(36 Red & 18 Blue) / 72 pcs(48 Red & 24 Blue) Material: Aluminum & PVC ModelD63ED292TG7782585 Power: 9W / 18W / 27W / 36W Input Voltage: 5V Input Current: 3A / Please use a power supply above 3A Wavelength: (Red: 620-625nm/ Blue: 460-465nm) Working Temperature: -20~40 Life Time: 50000 hours Lighting Range: 2-3 square meters Suitable Distance from Lamp to Plant: 0.98-3.98 ft