Smart Gro 2 Way, 4 Way Relay Grow Light Contactor 2kw 13amp Heavy Duty Timer





Smart Gro 2 Way, 4 Way Relay Grow Light Contactor 2kw 13amp Heavy Duty Timer

Item Description
Choose from the following:
  • 2 Way Relay Unit
  • 2 Way Relay Unit + Heavy Duty 24hr Timer
  • 4 Way Relay Unit
  • 4 Way Relay Unit + Heavy Duty 24hr Timer

Both High Pressure Sodium and Metal Halide HID Lamps require large amounts of current to ignite them and this initial surge of power can be nearly double the load needed once the lamp is fully running. 

Many growers use a 24 hour timer to switch on their lamps and control the day length in the grow room. However, almost all 24 hour timers are not designed or built to take the loads needed when an HID lamp ignites and will fail unless protected by a suitable relay or contactor. The inductive load that would otherwise be drawn through the timer will eventually result in the contacts within the timer becoming fused. When this happens your lights will remain off or on regardless of the time set on the timer. Your crop and safety is now in peril!

The load recommendations are shown below:

Rating - Running Current
  • 250w HPS - 1.33amp
  • 400w HPS - 1.9 amp
  • 600w HPS - 2.85 amp
  • 1000w HPS - 5.15 amp
User Instructions:
  1. Set your Timer unit to the desired on/off times and set current time.  The SmartGro Relay will be ON if the Timer is set to be ON.
  2. Plug in the GREY plug from the SmartGro Relay into the Timer and then plug the Timer into mains wall socket. - Do not turn this socket on until set-up is complete.
  3. Plug the WHITE Plug from the SmartGro Relay into a mains wall socket - Do not turn this socket on until set-up is complete.
  4. Plug your Electrical items into the Sockets on the SmartGro Relay, making sure that the load does not exceed the specifications.
  5. Turn on the mains sockets and test the applicances are working correctly. 

About Us

Welcome to Homewith Bargains.  We started trading on eBay in 2004 and have grown from year to year with a solid foundation of offering excellent customer service.  Our success has been achieved though purchasing at highly competitive prices and passing the savings directly on to the customer. We are one of few online retailers that still accept calls from customers regardless of whether it is for advice or to make a purchase, and unlike most other online retailers we still offer a Customer Service phone line. Our aim is to provide customers with something many of our competitors fail to achieve: competitive pricing coupled with 5 Star customer service. Tel: 0191 276 4333.


Please check the under the postage section of this listing to confirm if this item will be dispatched by Royal Mail or Courier.

Items weighing under 2kgs would normally be sent by Royal Mail.  Items weighing over 2kgs will be sent by Courier.  

Due to courier restrictions the postcodes below require a surcharge - please contact us for shipping cost to the following postcodes:

Channel Islands: All postcodes containing: HS /  ZE / GY / JE /  IM / BT /  Isle of Wight: PO / Scilly Isles: TR21 to TR25

Scottish Highlands & Islands Postcodes: AB31 to AB56 / IV1 to IV28 / IV30 to IV32 / IV36 to IV40 / IV52 to IV54 / IV63 /  KW1 to KW17 / KA27 to KA28 / PA21 to PA38 / PA20 to PA38 / PA41 to PA49 / PA60 to PA78 / PH4-PH50.


To pay by credit or debit card please call us on: 0191 276 4333

Payment may also be made by PayPal and bank transfer Please note: Cheques can take up to 5 working days to clear.

PayPal eCheque payments will take 7-9 working days to clear. All payments have to be paid within 7 days of item purchase.


We want you to be happy with your purchase so we offer a 30 DAY MONEY BACK GUARANTEE on all our products.  If for any reason you are not completely satisfied with your item just return it to us for a full refund. Item must be returned in its original condition and packaging (not worn or used). Refund will be for the item sale price less postage. 
If in the unlikely event your item is faulty upon receipt simply return it to us within 14 days, once we have confirmed the fault we will offer a replacement or refund in full (including all postage costs).

Contact us

Open Mon-Fri 9am - 4.30pm - Sat 10am - 1pm. Closed Sunday
Homewith Bargains Ltd
Unit 11 Chillingham Ind Est
Back Chapman Street. Byker
Newcastle upon Tyne
Tel: 0191 276 4333
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