2-Pack Grow Lights Included - Save money compared to buying two 2-head plant lights separately and get cost-effective plant lights, get more flexible use scenarios and a wider range of locations Full Spectrum White Light - Equipped with 2 660nm red+2 3000K white+16 6000K white LEDs in each bar, this grow light is similar to the full spectrum sunlight at noon, promoting photosynthesis, germination, growth, flowering and fruiting of plants. Cycle Timer Function - This grow light offers the circular memory timer function with 3 options - 6h/12h/16h, auto on/off and no more daily manual operation. The 16-hour timer setting offers your plants enough light during flowering and fruiting. Easy to Install - With non-slip clamp and 360 degree adjustable gooseneck, you can clamp the grow light to any surface and adjust the best lighting angle for your plants. Buy with Confidence - We provide 24/7 customer service. If you are not satisfied with our product or encounter any problems, please chat with us via Amazon, and we will provide satisfactory service for you.