Aquarium LED light: Descriptions: 1. Fixture designed in USA, assembled in China. 2. SMH-E3 can compete 250W Halide in 60cm water depth. SMH-E can compete 150W Halide. 3. 120 Degree beam can cover whole tank, while not narrowed on a slim line area. 4. Ball bearing cooling fan with accurate Tem-sensor and can adjust speed accordingly. 5. Hanging equipment and standing brackets included. 6. Semi LED applied, made in Taiwan 7. Advance or Philips T5 ballasts Main tests we made:ResultOn/Off test more than 5000 times.PassRoom tem 20C, working 48H<35CIncrease output of each LED to 1.4W, working 480HPassCooling fan noise, after running 48 hours.<30DB