Mars Hydro SP 150 Full Spectrum LED Grow Lights Are compact, Light weight And Made With An Aluminum Frame. Using A Total Of 322 LED Bulbs To Bring Out The Best In Your Plant Life. Lifespan Estimation Of 50,000 Hours Or About 2,083 Days Dimmable. 100-277 AC Voltage, Energy Saving Technology With High Power And Heat dissipation.