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With an HID4, wiring-up four lights has never been easier – or smarter!  

The first thing you will notice when you see this controller is the impeccable build quality.  Every detail is engineered with you in mind.  And we’ve designed these units so that virtually anybody can install one.  With the removable front panel, wiring is easier than ever.  Just mount to the wall or ceiling and bring your wiring right in and connect to the terminal blocks.
When it comes to plugging in your lights, each NEMA 5-15 outlet pair can deliver up to 15A of current, and is protected by its own 15A circuit breaker, so you have enough power to fire up even the most demanding loads.   With GrowCentral, you have unlimited flexibility in accessing your lighting,  anytime, and from any place.  You can create standard day & night schedules, custom day and night lengths, and even create seasonal lighting patterns where the day lengths mimic nature and incrementally decrease during the cycle.  

And it goes without saying that nobody can afford downtime.  That’s why we’ve designed the HID-4 with minimal failure points and easy-to-replace parts.  On the off chance you blow a relay, no problem - replace it in minutes without taking the unit out of service. 

When you add a CS-Series Climate Sensor, it adds high temperature shutoff features to all of your GrowCentral lighting controllers.  If a your temperature threshold is exceeded, your lights will power down to protect your crops.  This model is the Dual Zone configuration, so you can control your lights in two separate zones, each with its own schedule.  This is ideal for a 2-tent setup, or for those who need to control a veg and a bloom.  For ceiling mounting in commercial facilities, it allows you ultimate control over your light zoning.  As you can see, there is no better controller for powering up your lights! 

Start automating your garden and save time.  Add this fine piece of equipment to your grow operation today, and start reaping the benefits immediately!


  • 120V Output Single Phase lighting controller. Input: 240V, L1+L2+Neutral+Ground
  • 4 NEMA 5-15R 120-Volt outlets, with a 15A circuit breaker for each outlet. 
  • Up to 60A maximum output at 120V.
  • Dual Zone.  Two separate programmable zones, 2-outlets per zone.
  • Ceiling or wall mountable.  Save time wiring your garden's lighting.
  • Knockouts on top, bottom, and side, so you can bring wiring in from any direction.
  • Access your HID-4 controller from any phone, tablet, or computer.   Download the iOS app in the App Store.  Download the Android App from Google Play.  Or login from any connected device with a browser.
  • Create on/off lighting schedules for veg and bloom, create custom day & night lengths, and create seasonal lighting patterns that mimic nature.
  • Create lighting programs, turn lights on & off manually, get alerts, and review statistics, from any device, no matter where you happen to be. 
  • Easy to install and operate.  Our signature removable front cover makes installation a breeze.  Wire directly to color-coded terminal blocks, with knockouts on three sides of the chassis for flexible wire entry options.  Automate all of your lighting within minutes!
  • Use with CS-Series Climate Sensors to provide high temp shutoff functions.
  • Replaceable components mean no down time, ever.   
  • The HID4 never misses a beat.  Even if internet is temporarily down, all programs continue to execute. 
  • Powder coated steel enclosure built to last a lifetime with keyhole tabs for easy wall mounting.
  • UL 508A Compliant. Two year manufacturer warranty.
  • Requires Internet Router with WPS, GrowCentral Account, and Internet access. 
  • Proudly designed and made in the USA by master growers, with three decades of experience in the industry – undisputedly the best controllers money can buy!  


    • Input:  208/240V Single Phase 50/60Hz, 30A Maximum  L1+L2+Neutral+Ground
    • Output:  120V Single Phase 50/60Hz, 60A Maximum
    • NEMA 5-15 Duplex Outlet Receptacles:  2 (4 outlets total)
    • Circuit Protection: 15A Thermal Circuit Breaker Per Outlet
    • Programmable Zones:  2
    • WiFi 2.4GHz Standard ½ wave antenna
    • Powder coated steel enclosure
    • For Indoor Use Only
    • Dimensions: 12.25” x 6.75” x 3.75”
    • Weight: 7.5 Lbs.
    • Shipping Weight: 9.0 Lbs.

       Automating with GrowCentral is the easiest and smartest thing you can do for your garden!  Join the GrowCentral network today!