These lights each have a built-in daily timer. The controls are on the bulb itself and allow you to set the timing.

The winters here are a bit colder than average this year. I needed to bring my potted plants inside the garage because if i left them outside, they would die. Must be placed close to plant; 6 inches for plants needing strong light (tomatoes, cucumbers...  Read More

The timer function is great. A lot of plant lights with integrated timers require you to turn it back on and reset the timer manually afterpower loss.

These bulbs are terrific. This is my first time purchasing a bulb.

The arms are bendable & can move to cover different locations for plants. Easy to assemble and use.

Only 5 months and two of the bulbs don't. Have to reset the timer at least once a week. Remote is a hit or miss. Faint or no infrared light from the remote.