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Adjusta-Watt Retro LED 720W - Fixture Only (No Ballast)

Regular price £269.96 £299.95 | Save £29.99 (9% off)
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SKU: 10743
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Adjusta-Watt Retro LED 720W - Fixture Only (No Ballast)

Adjusta-Watt Retro LED 720W - Fixture Only (No Ballast)


The Adjusta-Watt Retro LED720w is a driverless LED grow light, allowing users to save on costs by connecting it to their existing 600w digital ballast. When used with a 600w ballast and positioned 15cm above plant canopies, it generates an average PPFD of 1231μmol/s/m², offering more than double the growth light of a 600w HPS lamp while consuming the same amount of power.

Features of the Adjusta-Watt Retro LED 720w include:

  • Driverless Design: Compatible with a 600w digital ballast, capable of overdriving up to 720w, allowing you to save money by not needing a separate driver.
  • High-Performance LEDs: The light fixture includes Sol-spec Ultra high PPF and PPE LEDs in a spectrum of whites, cool blues, warm reds, far reds, and balanced greens.
  • Transportability: Folds in half for easy transportation, making it convenient to move or store.
  • Longevity and Warranty: Designed for over 50,000 hours of operation and comes with a two-year warranty.
  • Flexible Operation: Capable of operating one fixture at 720w or two fixtures at 360w each, giving you the flexibility to adjust based on your needs.
  • Lower Operational Costs: Highly efficient, converting all consumed energy into usable light for plants. This fixture returns lower operational costs through its design and capabilities.
  • Passive Cooling System: Features a passive cooling system due to its wide coverage area, which means virtually no heat is generated.
  • Even Light Distribution: The evenly spaced light bars ensure consistent coverage and good light levels at the canopy.
  • Silent Operation: Operates silently without the need for noisy fans or moving parts, ideal for environments where noise is a concern.
  • Energy Efficiency: Highly efficient, as it ensures that the energy consumed is fully utilized as light, beneficial for growing plants.

This efficient lighting solution offers lower operational costs and allows for manual adjustment of output through the ballast's dial. It features a passive cooling system that covers a wide area with minimal heat production and provides uniform light distribution across the canopy. The design ensures all energy is effectively converted into usable light for plants, operates quietly without fans or moving parts, and is highly efficient.

The specifications of the Adjusta-Watt Retro LED 720w include:

  • 720w power input, with dimming modes native to the ballast.
  • Efficiency rates of 2.7μmol/J for a single unit and 2.8μmol/J when using two with a splitter.
  • PPF of 1,890.
  • Simple connection to a 600w digital ballast.
  • Recommended mounting height of at least 6 inches (15cm) above the canopy.
  • Passive thermal management without fans.
  • Expected lifetime of 50,000 hours.
  • Power factor above 90%.
  • Colour rendering index of 80 ra.
  • Operable in temperatures from -25 to +40°C.
  • Control is manual via the ballast's dial.
  • Dimensions of the fixture are 900mm x 900mm x 54mm.
  • Contains 1992 LED pieces.

***Please note this is the LED fixture only, we also offer this unit as a kit with a suitable ballast***



Delivery Information

Most orders are shipped within 24 hours.

Orders are currently shipped with Parcelforce (Express 24 service for standard and heavy/bulky items) or DPD Local (Premium next-day), a signature will be required on delivery. We have been shipping orders for 15 years and our courier choices are subject to change as service levels fluctuate.

All orders are shipped on a next day courier service – you will be informed via email or SMS the evening your order leaves us so you know to expect it the next day. On the morning of delivery you will get another SMS or email informing you of the expected delivery time.

If you have any questions on delivery please get in touch.

As the website calculates some charges by weight it is possible that shipping is not calculated correctly. We reserve the right to get in touch in these circumstances we will request the additional amount or offer to refund the order.

UK Delivery

Standard delivery to the UK Mainland addresses (excluding Scottish Highlands & Islands, offshore and N.I.) is charged at a flat rate of just £5.95 per order or £7.95 (for the premium next-day service), standard delivery (with Parcelforce) is free* for orders over £50.

*Large and/or heavy items attact a surcharge from our courier - shipping surcharges are calculated per item and are applied regardless of order value.

Non-UK mainland destinations are charged by weight.

International Delivery

Coming soon…

Collect in Store (Bristol)

We now offer a 'collect in store' option, which allows you to pay for goods online and collect from our Bristol store at time that suits you (within our opening hours).

The process is simple:

  1. place your order and pay online, select 'Pick Up' at checkout;
  2. receive an email confirming that the order is ready for collection;
  3. bring/show your confirmation email and photo ID to collect your order.


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