Material: PC + Aluminum Packaging size: 18*13*9.9 cm Weight: 286.8g/428.6g/571.9g Power: 15W/30W/45W Input Voltage: USB-5V Number of LED beads per head: 54 red + 24 blue Luminous flux: 1250 (lm) Color rendering index: 80 Role: Promoting plant photosynthesis Specifications: - Use USB power supply mode. - There are 1, 2, 3 lamp holders, and the lamp holder can be switched on mode, as well as timing function. - There are 54 red beads and 24 beads on every heads, you can use the controller to decide whether to turn on red light, blue light or purple light. - It can rotate 360 degrees to meet your need for plant growth light. - Efficient waterproof, you can water it directly. - Multi-stage dimming, effectively control of illumination brightness. - The use of plant growth lamps can effectively improve the growth of plants and increase the yield of crops. - Especially suitable for potted enthusiasts. Package Included: plant growth light*1 Notes: Radiation width range: about 20 cm Installation distance: Installation distance is less than 20 cm, the closer the plant is, the better. Irradiation range: 1 lamp cover plant surface width less than 20 cm. Complete indoor planting, about 12 hours; sunshine + artificial light, cumulative over 12 hours.   Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.