Set Current TimeRotate numbered dial until selection arrow points to current time of day. Note: Shaded section = Night Hours. In case of power failure, reset dial to correct time of day.Set working timeActivate (press down) grey dial clips for each hour of day or night you want light to be "on." Note: Each clip represents 15 minutes of working time.Set "Timer On" (top of timer)Plug light into timer and timer into electrical outlet. To deactivate timer control, slide switch to "outlet on."For indoor use only.Read and follow all safety instructions included with timer.UL Listed
Marineland Aquarium Light Timer
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