Smartgro relays absorb the surge of electrical power which occurs when HID lights are switched on and prevents timers (purchased separately) from fusing together.

Create a safer grow room environment with Smartgro relays

• Control horticultural lighting with confidence
• High power relays, 13A capacity
• Available in 2 and 4 way
• Simple to use, no assembly required
• Designed to switch lighting in accordance with timer
• Made in UK
• Splash proof