Sun System RS 1850 720W LED Grow Light

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  • One person installation
  • 1850μmol/s full-spectrum light
  • 2.6 μmol/J efficacy
  • 50-75-100% Dimming
  • Foldable fixture
  • 6x LED bars – perfect for 1.2m2 area
  • Manual dim 50-75-100%
  • 5-year manufacturer warranty
  • Please allow 2-3 Working Days for delivery of this item.

What Is The Sun System RS 1850 720W LED Grow Light?

If the descriptive title didn't do it for you, the Sun System RS 1850 720W LED Grow Light is a leading American grow light from Sun System. The RS 1850 LED is an innovative 6x rail, plug & play foldable fixture with long life, high efficiency diodes. Buying this superb, energy efficient grow light fixture gives you a lot of bang for your buck.

What Does The 1850 Mean?

The 1850 in the name of the Sun System RS 1850 720W LED grow light stand for the massive 1850μmol/s full-spectrum light output with an awesome 2.6 μmol/J efficacy. With an efficient performance like this, you can't go wrong.

Why Do I Need The Sun System RS 1850 720W LED Grow Light?

With it's one person, plug & play installation, no-nonsense hanging options, folding, and 50-75-100% dimming options, the RS 1850 is a full lifecycle LED grow light. The ability to dim this LED grow light means that you can use it to propagate seedlings/cuttings then crank it up for veg and flowering. This powerful IP65 rated LED enables you to rear your crop quickly and to the highest possible quality. IP65 rating makes it suitable to high humidity growing environments.

Garden tip: To control and connect up to 1000 fixtures, use a compatible Gavita e-Series Controller.

The RS 1850 720W LED grow light uses 6x light bars for an even footprint of full spectrum light with added UV to benefit strong flowering. The foldable design makes it easy to store, carry, and allows a one-person installation.

The 5-year warranty covers Sun System claims of the light maintains a consistent output over the same time-period to maintain high yields.

What Size Grow Tent Is best for The Sun System RS 1850 720W LED grow light?

The sun System RS 1850 720W LED grow light fits the footprint of a 1.2 x 1.2-metre grow tent or you can use more than one LED grow light in larger areas. You can also grow the plants from cuttings or seed under this LED using the integrated dimmer or add a compatible Gavita e-Series Controller for external control.

Sun System RS 1850 720W LED Grow Light Technical Specifications

The Sun System RS 1850 720W LED Grow Light features the following beneficial features:

  • Foldable fixture
  • 1850 mol/s
  • 2.6 mol/J efficacy
  • Manual dim 50-75-100%
  • External control via a compatible Gavita Master Controllers
  • 5-year warranty
  • Innovative 6 Rail foldable fixture
  • 720 Watt LED
  • Plug & play
  • Full spectrum with added UV
  • Built in hanging brackets
  • IP65 Rated
  • Consistent output over 5 years, maintaining higher yields

Type Specification
Version Sun System RS 1850 LED EU Input voltage 240 V +/- 10%V
Input current typical 3 A
Input power typical 720W
Power factor > 0.95
Total Harmonic Distortion < 15%
Frequency 50 / 60 Hz
Inrush current 14.2ms @ 240 VAC
Earth leakage current <1 mA
Product weight 12 kg (26.5 lbs) 
 Dimensions (L*W*H)   74.9 x 30 x 10 cm (29.5" x 11.8" x 3.9")
 Temperature case  <75° C
 Certification   IP65 
 Temperature ambient  0 - 55° C
 Relative humidity  < 70% (non-condensing)
 Power inlet  Wieland RST20I3F S2 M01V GN connector
 Insulation  Class I – requires an earth connection
More Information
Brand Sun System
Power (W) 720W
Customer Questions
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NOTE: For anyone outside of the UK (i.e. Republic of Ireland and the EU) you are free to arrange your own courier service. To order from us using your own courier, complete your purchase from our website, and select "Collect from our Warehouse — Chigwell". This is where you can arrange your own courier to collect your item(s) from. Address details are available on the Contacts page.

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    UK Mainland

    Standard Next Working Day (Orders over £50 <30 kg) FREE
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    Two Day Service £16.95


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As per the Consumer Contract Regulations June 2014, you can return goods and receive a full refund under the following conditions:

  • You have had the goods delivered within seven working days of delivery from Future Garden Ltd, this starts from the day after the goods have been signed for.
  • The items are unopened and in the original condition as when they were delivered to you.


  • The items have developed a fault during standard use.
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Simple checks

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