Sunmaster Dual Spectrum HPS Lamps

In stock online
Standard Delivery £6.95*
Free Delivery - orders +£65 Free Delivery - orders +£65
Plain Packaging Used Plain Packaging Used
Click and Collect Click and Collect
Product Name Qty Price
Sunmaster 250w Dual Spectrum
Sunmaster 400w Dual Spectrum
Sunmaster 600w Dual Spectrum
Sunmaster 1000w Dual Spectrum


The Sunmaster Dual Spectrum HPS lamps are perfect for your whole grow, developed to give you a broader light spectrum that lasts longer.

Dual spectrum lamps are increasingly becoming a number one choice for growers as more and more are discovering these bulbs do a great job throughout all stages of plant growth. In fact, we supply most of our grow light systems with dual spectrum bulbs, and so far the feedback from our customers has been nothing but positive.

This innovative design delivers more usable red and blue light for both the vegetative and flowering stages, without depleting overall lumen output or intensity.

  • 250w Dual Spectrum
  • 400w Dual Spectrum
  • 600w Dual Spectrum
  • 1000w Dual Spectrum


  • Long life
  • Gives 10% more light output
  • Economically designed
  • Rapid starting
  • 6 month guarantee
Delivery & Returns
Free Delivery
We are pleased to offer free standard shipping to UK Mainland on all orders over £65.00 *Heavy item surcharges are still applicable.
Next Day Delivery
In a hurry for your order? Order before 1 pm Mon - Thurs for next working day delivery *subject to stock availability T&C's apply.
Different delivery address?
Do your goods need shipping to an alternative address? If so, paying by bank transfer gives you the freedom to have them delivered to anywhere in the UK.
Free Returns
Faulty or damaged item? No problem, contact us on 0800 038 7100 or email customer service and we can arrange a free collection.
Plain Packaging
All parcels, no matter how big or small, are dispatched in plain packaging using black wrap that's secured using 'fragile' tape.
How to Pay
Credit / Debit Cards
We accept all major credit and debit cards. Please note: When paying by credit card we can only ship to the card statement address.
Simply select this option at checkout if you prefer to pay through PayPal. Please note: When paying by PayPal, we can only ship items to the account owners confirmed address.
Bank Transfer
Select the option for Bank Transfer at checkout if you wish to receive your item anywhere within the UK. Please use your order number as payment reference.
Split your purchase into manageable payments. Buy now and pay in 30 days or in three interest-free instalments with Klarna.
Click & Collect
Collect your online orders in as little as under an hour*! Simply pay online, choose your store & collect for free! Available from Manchester & Huddersfield (*subject to stock availability).
Brand Sunmaster
Products Details
Lamp Type High Pressure Sodium
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