Activate 4 - 4 Way Contactor Timer Relay Includes Built in 18/12 Hour Timer.

Gromatrix Activate 4 - 4 Way Basic Contactor Timer is a heavy-duty grow light controller capable of switching your grow lights on and off effectively and safely and is an integral part of any grow room.

The controller uses an electrical contactor to switch your grow lights on and off and does not suffer the common problems experienced with domestic analogue timers.

The built-in timer has two modes, 18 hours or 12 hours of lights on. Both modes have the option to make them 1 - 2 hours shorter a day which allows you to switch your grow lights on for 10 or 11 hours at the end of the flowering period. The Contactor Timer also has delayed start to delay the lights on period allowing you to set what time of day you want the on period to be.

The controller has been designed to be a simple plug and play unit.

How to Operate Activate 4

  1. Press MODE button to select your required mode 18 or 12 hour. LED is illuminated green for 18 hour mode and off for 12 hour.
  2. OPTIONAL: Press SHTN button to select shorter hours for the on period if required. The LED will flash once for 1 hour, twice for 2 hours and LED off is 0 hours.
  3. OPTIONAL: Pressing START / STOP button will allow you to select a delayed start time 0 - 9 hours. This allows you to select when you want the lights on period to be. The LED will flash once per hour of delay.
  4. Press and hold START / STOP button to activate the unit, the lights will come on if no delay is selected, or the lights will come on when the delay time is reached. The LED will illuminate GREEN if lights are ON or RED if lights are OFF.

Deactivating the Unit

  1. Press and hold START / STOP button to deactivate and the unit will return to the setup mode.

Mains Fail Indicator

If there has been a power cut the START /STOP LED will blink indicating there has been a mains fail.

Shorter ON Period

You can press SHNT to select shorter ON period when the unit is Active and Not Active. This means you can change from 12 hours to 11 or 10 hours any time.



Made In The United Kingdom

PDF User Manual
Contactor Timers
Features 18 Hour and 12 Hour Mode Time Clock with Shorter On Period and Delayed On Time, 4 British Standard Socket Outlets, Max switching capacity 3 – 20A, 4 Mounting Holes (Fixings Supplied)
Mains Rating 230-250V AC 50hz, Max 13A per mains socket, External Fuse Rating 13A
Operating Loads 4 x 250watt light units, 4 x 400watt light units, 4 x 600watt light units, 4 x 1000watt light units, Max switching capacity 3 – 20A

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  • Brands Gromatrix
  • Model: ACTIVATE-4-4W
  • Availability: In Stock
  • £58.30

  • EX VAT: £48.58

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