High Brightness 36w Grow Light,Auto ON & Off Every Day with Cycle Timer Desktop Plant Light,8 Dimmable Levels,4/8/12H Cycle Timing for Indoor Greenhouse Growing Lamps85% metal aluminum, 15% green cable Made in USA and Imported Cycle Timer: The Timer button Designed With 3 Modes, Can set up the Time with 4 8 12hours according to Different Growing Stages. This upgraded plant light has a cycle timing function, you don't need to manually turn on the timer function every day. The Grow light will turn off after finnishing the time setting, and turn on automatically next day at the same time.