The most widely utilised size of HPS grow lights in the UK is the 600 Watt model. The most effective bulbs are 600w ones, which produce more light per watt than any other size. They are perfect for 1.2m x 1.2m (120cm x 120cm) hydroponic growth areas. We offer a variety of 600w Grow Light Kits with the best materials to fit every budget.

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