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ULight 720w Full Spectrum LED Grow Light 2.7 µmol/J
Sale price$499.95
Regular price$599.95
ULight FAQ's
It is efficacy — how much usable light a fixture produces for each joule of electricity it consumes. A higher figure means more light for the same power and the same heat. The ULight 720W is listed at 2.7 µmol/J. Comparing efficacy is more informative than comparing wattage, because wattage only tells you what the fixture costs to run.
Bars spread the same power along a length, which gives more even coverage and better penetration into a canopy, and they suit rectangular footprints. Panels concentrate light through one surface and suit smaller square spaces with a single hanging point. The 110W Pro and the 1000W 10-bar are the bar options here.
Check the coverage area on each product page and match it to your footprint rather than picking on wattage. The ECO 320W is positioned as the entry fixture for a standard single-light tent. Once it is hung, take PAR readings across the canopy including the corners — that is the only measurement that reflects your actual tent.
Almost certainly. Practically all the power a light draws ends up as heat in the room. Stepping from a 320W to a 1000W fixture roughly triples that load, so the extraction fan and filter that coped before will not cope after. Plan the ventilation alongside the light rather than afterwards.




