[Combination of 14 blue LEDs + 26 red LEDs] -The double head LED grow light has 14 blue LED chips, which can ensure that the plants absorb more energy through the synthesis of chlorophyll to promote germination. The 26 red LED chips help efficient germination and flowering, and enhance photosynthesis for better results. The effect usually occurs within 2 weeks. [5 dimmable modes and 3 switching modes] --- Our factory luminaires have 5 dimmable modes (20%, 40%, 60%, 80% and 100% brightness). Three switching modes (only red light is on / only blue light is on / both red and blue light are on). You can choose the suitable dimmable mode to achieve different stages of plant growth. [Unique multi-period synchronization function]: We use the latest in plant lighting technology. The cycle storage timer function can be divided into two groups of cycles to open and close automatically every . You don't have to manually turn it on and off every . You can set the switching period at any time. Ultra stable clamp and 360 flexible gooseneck --- With the help of a powerful clamp, the LED plant light can be firmly fixed on the table or shelf. It has great grip and doesn't take up a lot of space. Using a 360 elastic gooseneck, you can adjust the angle and distance between the plant light and the plant as needed to better accommodate the growth of the plant. Energy-saving low temperature LED --- LED lighting systems have low power consumption, environmental protection and low heat output. After prolonged use, the bulb will stay cool. Touching the light will not burn your hands or damage the plants, and to some extent will increase the lifespan of the plant light. Specification: Material: PVC and aluminum Lamp length: 21 cm / 8.2 inches Product weight: 550 g / 1.21 lb Casting weight: 40 W maximum Lumen output: 300lm Operating voltage: 5V LED chip: Red: Blue = 26:14 Lifetime: 50,000 hours