[Bonnieseal]

Hi all, Im in the process of completing a 15m2 shed out my back garden, it will be fully insulated etc.
Im looking at putting omega infinity 3.0 pro 600w lights in the room.
Ive always used 600w or 1000w hps lights in previous grows, however I'm looking to cut my electricity bill and have easier temps to work with by going with led.
Has anybody used the omega 3.0 infinity led lights? What kind of results did you get? Do you recommend a different light that's equivalent to either a 600w hps or more.
Im going to be growing in Wilma systems, 4 plants in 18l pots using clay pebbles.
How many of these lights could I fit in this space? What kind of results could I expect using this led or a better led?

thanks

 

[compostmike]

Fifteen square metres sounds big until you leave yourself somewhere to stand and service the Wilmas. I'd lay it out as 1.2 x 1.2m flowering bays, one light and one 4-pot Wilma per bay. If the shed is roughly 3 x 5m you could physically get eight bays in two rows with a centre aisle, but six may make a much better room once you allow for the reservoir, dehumidifier, intake/extract and access. Ten is only the paper maximum from floor area and would be miserable to work in. The actual inside length, width and door position decide the number.

The bit that would stop me buying a room full of those Omegas is the spec sheet. They're advertised as 600W, 1890 umol/s and 3.0 umol/J, but at least one seller also lists the input draw as 475W. Those numbers can't all be right. 1890 from 475W would be almost 4.0 umol/J, not 3.0. No way I'd order six or eight based on that. I'd buy one, check its draw at the wall and map a 1.2 x 1.2m canopy with a PAR meter. Treat the claimed 1.4 x 1.4m footprint as marketing until you see the readings at the edges.

If I wanted the safer 600 HPS replacement while actually cutting power, I'd spend the extra on the Lumatek Zeus 465W Pro 3.1. It draws about 475W, publishes 1450 umol/s over a 1.2 x 1.2m footprint, names the diodes and has a five-year warranty. The Zeus 600W Pro 3.1 is stronger again, but it pulls around 640W, so that one isn't an electricity-saving swap for a 600 HPS. The Omega may turn out to be good value, I just wouldn't design the whole shed around unverified brochure numbers.

I wouldn't put a yield figure on any of them. Fill each bay with an even canopy and aim around 700-900 PPFD in flower without added CO2, then the plants and environment will decide the rest. Remember LED doesn't make heat disappear either. The savings come from getting the same useful light with fewer watts and, if possible, mounting the drivers outside the room. Six 475W fixtures are already 2.85kW and eight are 3.8kW before pumps, fans and dehumidification, so get proper dedicated circuits and switching put in rather than running that room from plug-in extensions.