Features: 1. AUTO TURN ON/OFF TIMING FUNCTION: This is the Upgraded timing function USB plug plant grow lamp, you can not only set it up for lighting 3/ 9/12 hours, but also adjust the brightness of the light and the distance between the light and plant according to plant needs. 2. EFFICIENT RED/BLUE LED COMBINATION: This LED grow lights is of high luminous efficiency, lower power consumption and long service life LED Bulbs.Meet the conditions of plant growth without sunlight. The red light promotes photosynthesis in plants, germination, bloom and bear fruit. The Blue light ensure plants take in more energy through the synthesis of chlorophyll to help in germination. 3. MULTIFUNCTIONAL SWITCH: Plant grow lamps provides 10 birghtness levels and 3 Spectrum Switching modes to suit varied stages of plant growth. This 2/3 lamps with 360 degree flexible neck and clamp is easy to adjust and place anywhere. 4. 3 LAMP DESIGN: This plant grow light will be brighter than traditional ones, 3-lamp is able to light a wider area and emit light in any direction to provide energy to more plants. 5. WIDE APPLICATIONS: It is suitable for florist, gardener, the person who cultivate the vegetables and various flower. And also suitable for indoor plant seedlings grown in a hydroponic greenhouse at your home or you placed in your office. It helps to accelerate the growth of different plants for all stages, such as flowering plants, succulents, potted plants, other fruits and vegetables etc. Specifications: Power supply: via USB Size: as picture shown Power: 2 Ends:20W;3 Ends: 30W Package List: 1 Set x Plant Growth Light