400 watt Dual Spectrum Sumnaster Lamp

400 watt Dual Spectrum Sumnaster Lamp

£17.99 inc vat

Sunmaster grow lamps will last anything upto two years but the lumen output of the lamp will greatly reduce overtime. To maintain high yields try to change your bulbs every 2 to 3 crops.
SUNMASTER Conversion Grow Lamps are Metal Halide lamps which operate on
standard HPS ballast and ignitor systems. The Neutral Deluxe version emits
balanced light similar to a 4000° Kelvin source, while the Cool Deluxe version
emits light similar to a 7000° Kelvin source, imitating the natural look of
SUNMASTER Conversion Lamps are effective in promoting both vegetative growth
and flowering. They surpass the HPS lamps they replace in PAR watts - the most
objective measurement of total light energy available for photosynthesis

Estimated delivery time: 
55 000
Beam angle: 
Colour (Kelvin): 
Dual Spectrum Growlux

Shipping and Handling: -

Our next day delivery cut off time is 2 o’clock.

If you are purchasing from outside the UK an additional delivery cost will apply this is added at the checkout once you have entered your address.

Delivery Schedule: -

We try to despatch all orders the same day we receive it. (Monday to Friday). We will deliver to you either by Royal Mail, or by parcel carrier, according to weight and value of order. Delivery is usually within 48 hours or sooner depending on the time of day we receive your order. All orders are sent recorded and must be signed for so please make sure someone is in, or we can deliver to your place of work if this is convenient. We are unable to despatch orders at weekends and bank holidays.

In the event that we are out of stock for a particular item, we will send everything but that item to you. Once the item comes into stock, we will then complete your order, at no extra delivery cost to you. If you require an item urgently please call or email us with the 'item code' and we will advise immediately if the item is in stock.

Back Orders: -

If your item is not in stock, we will back order for you. We will always email you with the option to cancel the order if you would rather not wait.

Oversize charges/free delivery

Due to the weight of our mains cable an extra £2.50 will apply per drum to cover the cost of the delivery, aside from this if you spend over £99 then delivery is free. We also deliver LED lamps and some brands of lighting for free with no minimum order value. To discuss any delivery costs ahead of placing your order please email or call us, it’s a free phone number and we will happily work everything out for you.


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Estimated delivery time: 3 days
Shipping cost: £5.99
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[email protected] | 131 Gloucester Road, Bristol. BS7 8AX
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