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HPS Lights Flowering

These HPS grow lights emit a red/yellow color spectrum and are exclusively for the flowering stage. They lack the blueish spectrum necessary for the growing phase.
Sunmaster HPS Deluxe Sodium
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GIB Lighting Flower Spectre
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Narva HPS NAT-VEG
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Philips Master Son-T Pia Plus
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Osram Vialox Nav-T Super
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Sylvania HPS-TS
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Lumatek HPS
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Elektrox Super Bloom HPS 2000 K
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Lumatek Pro HPS 600W 400V
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HPS bulbs need a separate ballast to function and can't just be screwed into a bulb socket. These HPS bulbs produce more Watts (and are more expensive in terms of operation) than regular plant lamps, it is advisable for the "smaller" grower to revert to low-priced alternatives like energy-saving bulbs or fluorescent lamps.

The light quality and efficiency of HPS lights is very high, yet they get very warm, which may make the climate control more complicated.
Europe-wide shipping
Neutral packaging
One of the largest selections of smoking accessories in Europe
£