TiFFCOFiO Indoor Mechanical Timers for Electrical Outlets, 2 Prong Plug in Outlet Daily Repeating Light Timer for Indoor Lights, ETL Listed (2 Pack)

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One-plankton- posted on r/fishtank20w

Buy a plug in timer like one of these and set it to 8 hours max. Almost all LED lights will work with one.

TiFFCOFiO Indoor Mechanical Timers for Electrical Outlets, 2 Prong Plug in Outlet Daily Repeating Light Timer for Indoor Lights, ETL Listed (2 Pack) | eaves-shop