Feature Dimmable; Multiple Time Range Setting; Auto turn on/off Power: Max 18W Material: metal Input voltage: 5V Lumen output: 350lm LED Chips: Red : Blue = 26 : 14 Wavelength: Red:660nm Blue:460nm Life time: 50000 hours Light color: Red Blue Certification: RoHS CE FCC UL Pacage include 1 x Dual head LED grow light 1 x USB Charger 1 x Outlet Timer 1 x User manual This Plants light fit indoor plants grow: Flower Plants: Medical Plants, Tomatoes, Pepper, Rose, pepper and other plants,Herbs and leafy vegetables: Lettuce,bok choy ect Indoor potted landscape. Why is red light important for plants?Why is blue light important for plants? Red light is very important to plant reproduction. Phytochrome pigments absorb the red and far red portions of the light spectrum and regulate seed germination, root development, tuber and bulb formation,dormancy, flowering and fruit. production. Blue light stimulates Chlorophyll production more than any other color, encouraging thick leaves, strongstems and compact vegetative growth. Why Choose Us? 1. All of our LED grow lights are designed by a specific LED grow light engineer with many years experience . 2. Our LED grow lights have been tested by real world Lettuce ,rose and tomatoes growing experiments ,we tested all of our products before bringing them to the marketplace . Reminder 1. Would be better to keep the distance between the light and plant about 20-60 cm, far away from plants to avoid burning leaves. then it won't burn leaves. Turn on the lights 6-14 hours/day, DO NOT make your plants in photosynthetic all the time, they need rest too. 2. Generally this grow light should be turned on for 7 hours one time, 2 times every day.