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Relays and Contactors

Because of the high wattage used with grow lighting a contactor or relay is needed to switch the lights on and off when used with a timer or the high wattage can melt normal timer contacts together leaving your grow light stuck in the on position risking flowering plants reverting back to grow because of the constant light on hours. Hytec Hydroponics sell many different types of relays and contactors some with inbuilt timers to control your grow lighting hours without any risk of over powering any weak house hold timers and risking electrical fires.

This grow light timer is ideal for controlling the on/off cycle of one 250W to 600W lamp, perfect for use in a smaller grow tent for example where only one grow light is necessary. Giving your plants a proper cycle of light is very important to their development, at some points in your cycle they ..
£12.71
Ex Tax:£10.17
Brand: Maxibright
- 13A (3kW) of relay switching- Requires two plug sockets- On/off operation..
£33.90
Ex Tax:£27.97
The TIME-R is an all-new concept for the hydroponics industry.The TIME-R operates like a normal timer but has a multitude of other options for controlled switching that go down to one-second intervals if needed. If you want to run a fan/pump with different settings at night or you want to dispen..
£39.83
Ex Tax:£33.05
Brand: Maxibright
Timer units alone can not handle the inductive load created by lighting ballasts resulting in the timer pins becoming welded together causing the lights to be permanently on, the Maxibright 4 way contactor unit is capable of switching 13amps of load equivalent to 3kw of lighting, requires two power ..
£44.92
Ex Tax:£37.29
Brand: Lumii
The LUMii BLACK contactor timer is a simple and cost-effective solution for grow light scheduling, ensuring that plants get the optimum levels of lighting throughout the day. The mechanical timer is easy to programme in 15-minute increments, while the relay switch safely turns on HID lights without ..
£60.17
Ex Tax:£50.00
Brand: Maxibright
- 13A (2kW) of relay switching- Requires one plug socket- On/off operation..
£65.25
Ex Tax:£54.24
Brand: Lumii
LUMii 2 socket contactor timers. Designed, assembled and quality checked in the UK, the LUMii contactor timers are the most robust and professional on the market. Fitted with the world leading Grasslin timer, our contactor's also have protection covers for all sockets and floor pads for fl..
£70.34
Ex Tax:£58.47
Brand: Maxibright
The blackbox Pro Contactor range is unmatched for high quality lighting control! The blackbox Pro Contactor is designed to control your light cycle so you don't have to, built with professional quality Grasslin panel mounted timers you can be sure your light cycle will always be on time. T..
£70.34
Ex Tax:£58.47
Brand: Green Power
The Green Power Hobby 2 way relay unit is ideal for the smaller scale plant grower wanting to protect against electrical surges and accidental overload. These units are manufactured to the highest British safety standards; they are made from quality components as all Green Power contactors are. The ..
£72.03
Ex Tax:£60.17
Black Box 4 Way 13A Contactor Relay Built In Timer Switch for grow light control.SENTINEL 4 WAY/13AMPS CONTROL SWITCH CONTACTOR/TIMER/RELAY-BUILT IN GRASSLIN..
£75.42
Ex Tax:£62.71
Brand: Green Power
The Green Power 2 way Professional contactor timer is perfect for a two-light grow room with limited mains power sockets and a maximum input load of 2000 watts. These units utilize a heavy-duty professional contactor and a professional grasslin timer. The 2-way contactor timer has a handy built-in s..
£79.66
Ex Tax:£66.95
Brand: Lumii
LUMii 4 socket contactor timers. Designed, assembled and quality checked in the UK, the LUMii contactor timers are the most robust and professional on the market. Fitted with the world leading Grasslin timer, our contactor's also have protection covers for all sockets and floor pads for floor u..
£84.75
Ex Tax:£71.19
Brand: Lumii
The LUMii BLACK contactor timer is a simple and cost-effective solution for grow light scheduling, ensuring that plants get the optimum levels of lighting throughout the day. The mechanical timer is easy to programme in 15-minute increments, while the relay switch safely turns on HID lights without ..
£88.14
Ex Tax:£73.73
Brand: Maxibright
26A (6kW) of contactor switchingRequires two plug socketsOn/off operation..
£88.14
Ex Tax:£73.73
Brand: Maxibright
The Black Box Pro Contactor is designed to control your light cycle so you don't have to, built with professional quality Grasslin panel mounted timers so you can be sure your light cycle will always be on time. The Grasslin timers used in the MaxiSwitch Pro are German made heavy duty segm..
£89.83
Ex Tax:£75.42
Brand: Lumii
LUMii 6 socket contactor timers. Designed, assembled and quality checked in the UK, the LUMii contactor timers are the most robust and professional on the market. Fitted with the world leading Grasslin timer, our contactor's also have protection covers for all sockets and floor pads for floor u..
£94.92
Ex Tax:£78.81
Brand: Green Power
The Green Power 4 way Professional contactor timer is ideal for four light grow rooms with a maximum input load of 4000 watts. These UK-built units utilize a heavy-duty professional contactor and a professional reliable grasslin timer. The 4-way contactor timer has a handy built-in hanging bracket a..
£94.92
Ex Tax:£78.81
Black Box 8 Way 26A 8kW Contactor Relay Built In Timer Switch for grow light control.SENTINEL 8 WAY/26AMPS CONTROL SWITCH CONTACTOR/TIMER/RELAY-BUILT IN GRASSLIN..
£100.00
Ex Tax:£83.05
Brand: Maxibright
The Black Box Pro Contactor is designed to control your light cycle so you don't have to, built with professional quality Grasslin panel mounted timers so you can be sure your light cycle will always be on time. The Grasslin timers used in the MaxiSwitch Pro are German made heavy duty segm..
£105.08
Ex Tax:£87.29
CONTACTOR BOARD 16/18 WAY 40A
-16 %
16-Way Contactor Board with Grasslin Timer 40A Contactor 600 x 300mm MDF Board with room in the corners to fix to the wall Quality 24hr mechanical timer that won’t let you down 16 timed sockets 2 sockets with constant power for powering fans, etc.THIS BOARD MUST BE INSTALLED BY A QUA..
£109.32 £129.66
Ex Tax:£90.68
Brand: Green Power
The Green Power 6 way Professional contactor timer is perfect for a six-light grow room with a maximum input load of 4000 watts. These units utilize a heavy-duty professional contactor and a professional grasslin timer. The 6-way contactor timer has a handy built-in hanging bracket that can be screw..
£110.17
Ex Tax:£91.53
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