For Help & Advice: 0117 971 3000
Greens Horticulture - Serving Growers All Over The UK


Regular price £58.46 £64.95 | Save £6.49 (9% off)
Tax included. Shipping calculated at checkout.
In Stock
SKU: 10705
Spend £50.00 more for free delivery (shipping surcharges still apply)




Illuminate your grow with the Cosmorrow 40W Full Spectrum - Single, a powerful and energy-efficient grow light designed for both indoor and outdoor cultivation. Perfect for all stages of plant growth, this versatile light provides the full spectrum of light your plants need to thrive, from seedling to harvest. Whether you're growing flowers, fruits, or vegetables, the Cosmorrow Full Spectrum light ensures your plants receive optimal light conditions for healthy and vigorous growth. It's also more efficient (2.85 umol/J) when compared to it's older siblings, the Cosmorrow 20W COP Grow OR Bloom - Single OR Twin (2.7 umol/J), and the Cosmorrow 40W COL Grow - Single OR Twin (2.7 umol/J). Manufactured by industry titans Secret Jardin, the unit delivers:

  • Full Spectrum Lighting: Provides a balanced light spectrum that supports all stages of plant growth, ensuring robust development from seedling to bloom.
  • Energy Efficient: Consumes only 40W of power, offering significant energy savings while delivering high light output.
  • Versatile and Flexible: Suitable for a variety of growing environments, including grow tents, greenhouses, and outdoor setups.
  • Easy Installation: Comes with a plug-and-play design, making it simple to set up and start using immediately.
  • Durable and Long-Lasting: Built with high-quality materials to ensure longevity and reliable performance throughout your growing cycles.
  • Cool Operation: Runs cooler than traditional grow lights, reducing the risk of heat damage to your plants and lowering cooling costs.

Transform your growing experience with the Cosmorrow 40W Full Spectrum - Single. Perfect for growers of all levels, this light ensures your plants receive the best possible care, leading to healthier growth and bigger yields.

Highly recommended for seedlings/young plants, or as additional/supplementary/underside lighting. They can also be used for propagation, just ensure there's adequate space between the light and canopy top - although these units are 'only' 40W, they're surprisingly bright and cuttings/clones may want some protection via distance or shade netting, for example.


Customer Reviews

Be the first to write a review


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.


Recently Viewed Products

Special instructions for seller
Add A Coupon

What are you looking for?

Popular Searches: Plant Lighting  LED Lighting  Bud Box Grow Tent  Carbon Filters