USB Aquarium LED Light Full Spectrum Aquatic Plant Grow Lamp Fish Tank Adjustable Brightness Dimmable Timed 360 rotatable Light Description Super Bright USB Clip Lamp LED Aquarium Light for Aquatic Plant Grow Fish Tank Full Spectrum Multi-stage color change 10 levels of brightness adjustment Lighting time control 360 rotatable Light 5V Note: There may be an error of 1 to 3 millimeters in manual measurement. Thank you. Product: Aquarium LED USB light For: Aquatic Plant Grow Fish Tank Function: brightness adjustment Lighting time control Power: 9w/14w Voltage: 5v Lamp housing color: black Power cord length: 180cm Lamp beads: 30/42 pcs Suitable glass thickness: 2 -12mm For Tank20-60cm/40-100cm Features 1. USB wide voltage appliances, can meet the needs of different regional voltage 2. With waterproof baffle, can resist water vapor. 3. The light can be adjusted according to the scene needs to adjust the brightness, a total of ten levels brightness can be adjusted 4. The light has three color modes that simulate sunlight can promote photosynthesis of aquatic plants, acceptable for freshwater/saltwater aquariums 5. The version with timer is with timer for 3/9/12 hour timer and daily cycle. 6. Ultra-thin lamp body, more beautiful. 7. The light's spreader bar is flexible and 360 rotatable. 8. Dual knobs for stronger fixing, supports 3-12mm glass About light time 1. It is recommended to turn on the light for about 3 hours a day 2. Regular lighting helps to maintain water balance. 3. If algae appear, reduce the light time. Note 1. Lamp does not have memory function 2. Packing list: Aquarium light x 1pc 3. Unplug when not in use 4. The controller is not submersible or waterproof 5. Turn the power off/on. Make sure your hands are dry _x000D_