As for the 480 watts at the knob indent me and a few others plugged the wall cord into a watt meter and found that info fyi. Full blast it will use about 600 true watts at the wall. The light came with a booklet and if i recall correctly it said minimum height above the light is 15" due to heat output. I think hlg website listed some good specs on it.
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@JoGro there is such a thing called the “sweet spot” for the light. That is the lowest distance to the plant tops you can get without burning them. Say at 70% you can lower the light an inch at a time. After a full cycle if theres no sign of burn like cupping etc. lower another inch. Once you see a slight bit of the leaves cupping or noticeably dropping down away from the light raise it an inch and that will be your sweet spot.
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Ok. What a great tip! Thanks for the info about the hlg rspec specifically. I will try and find my sweet spot! Thanks again!
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I got my info on the light directly through a contact email of HLG themselves…
They reply quickly… ask as much as you can… They will reply, and it’s rather detailed data
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Specifications
| Power | 160-600 Watts |
|---|---|
| Voltage Range | 100-277 VAC 50-60Hz |
| LED | Samsung LM301H & Deep Red |
| Flowering Footprint | 5’ x 5’ at 28" |
| Veg Footprint | 6’ x 6’ at 40” |
| System PPF Efficacy | 2.60 μmol/joule |
| Total output | 1529 PPF |
| Dimensions | 26" x 21.5" x 2.75" |
| Recommended Mounting Height | 28-36 inches above canopy |
| Certifications | UL 8800, UL 1598, CSA |