The Maxibright Quad Timer is the simplest and most cost-effective way to control grow room lighting cycles for up to 4 x 600 watt grow lights or 2 x 1000 watt grow lights. There's no need to run it in conjunction with a separate contactor / relay. Instead, just plug the Quad Timer into a wall socket and plug a multi-socket into the front of the Quad Timer. You can then plug your lights directly into the multi-socket.
How the Maxibright Quad Timer Works
The Maxibright Quad Timer does the same job as a regular heavy-duty timer, but it's four times as effective. It's certified under British safety standards as being suitable for handling a 13-amp load. You can adjust 'on' and 'off' times in 15-minute segments, allowing you to regulate your plants photoperiods. Just flick the little switches in each 15-minute segment up or down to select on and off times. Unlike cheaper timers, it keeps time accurately, too.