Thats good to hear, do you use them for bloom aswell?
Wtf! A 1800w light with 330w at the wall, lol! Really?! You can't get an efficient LED fixture for just 100 bucks. Bright as can be, lol! Every shitty HPS bulb is more efficient even the 150w ones. Such blurples reach 1-1,3μMol/J(watt). 300w would be 300-390μMol/s PPF in the best case!
Do yourself a favor and take something with a white spectrum. Quantumboards for instance are two times more efficient(2,5μMol/J) and only one QB (150w) would blow such a crappy china blurple light out of the water cause you get ~375μMol/s PPF. Also the 300w ones called 1800w replacement, lol.
Cheapest diodes, cheapest drivers and all this in a cheap housing and you guys really think such a light can be good?
They veg okay but for flowering on a 4x4' area you need at least two of them, better 3.
4 Quantumboards aka an HLG-550 would have 550w and would produce more usable light like 3 of these 1800w/300w lights. Within the 1st year you'll see also lots of burned out diodes on these cheapos.. That's for sure!
Yepp, QB's are not that cheap because they use quality top bin Samsung diodes but therefor they last ~50.000h.
And the boards itself are BTW fully assembled by Samsung!
You can do what you want, bro! When you want to go the cheap route..it's your money! But one good ol' rule says, buy cheap and you have to pay two times.
With QB's you can get ~1,7g/w regularily, with cheap blurples you'll get 1g/w maybe.That's a fact!
We all have tried them at the beginning. I myself have tried 3 Mars 300 reflector lights 5 years ago but I've sold them 3 weeks later. No need to mention I've lost 150 bucks because of my stupidity...
Today I only make my own LED fixtures (see signature) and my current one has ~2,6μMol/J. Samsungs new horti strips reach 2,74μMol/J efficiency for instance and they should be available soon. Digikey.com or arrow.com are cheap sources for DIY parts.