Recent content by PurpleGunRack

I use this method for photo period plants indoors with 36 plants in 4L pots in a 120x120cm tent and it works very well, even with 36 different plants grown from seed. No need for pebbles or perlite in the tray, fabric pots will wick up the water in no time, just make sure you have an aerated...

Supposed to? Continuously force feeding an LM301b diode with 400mA will kill it. Mean Well HLG and XLG driver have several protective measures but force feeding them twice the max input will kill them Which lights are running that low? I've never seen anyone commercial or DIY setup run any...

Yes, this will significantly reduce wear on the diodes but increase wear on the driver, not a bad trade though :) Yes, I think all LED grow light companies use a driver that powers the diodes at 50-80% of their max load. With LM301b diodes it makes big difference running at 75% rather than...

Yes, they both generate 3412 BTU/h. So will 9 Volcanos, 1428 classic Nintendo Gameboys, or 28 sleeping Border Collies :)

Sorry, scrolled to fast and missed this :volcano-smiley: Yes, a top tech LED light can produce up to around 50% more light at the same heat level as a top tech HID :)

Yes, exactly. It's basic physics, 1W is equal to 3.412141633 BTU/h, whether it's generated by a light, a toaster, or a running deer. No :) 550w is 51.88679245283019% of 1060w. 51.88679245283019% of 3617 BTU is 1877 BTU. On another note; the driver/ballast loss is totally irrelevant, heat is...

First of all, you don't have to worry about that temperature, you can successfully grow cannabis at over 90°F, so don't sweat it. Ambient temperature is only an indicator measurement - leaf surface temperature and root zone temperature are what's important. The lights you have are fine, if...

Could be because of a higher terpene/moisture content, due to the relatively short drying/curing process. Using well dried/cures material, pressing at low temperature, and whipping the rosin after press will in most cases give you a more solid and less sticky rosin that's easy to handle. You...

Why specifically 3500K / 90 CRI @ 75-80w ? Make sure you get Gen3 COBs !!! You have a forward voltage of 48-55V and a max current of 2,2A. I would do 8 COBs in parallel on a Mean Well HLG 600h-54A. That would give you 53V * 1,4A = 74,2w DC per COB (77,2w AC) Well personally I would run...

Ahh OK now I understand :) You need a heatsink in any case so the thickness of the strip is irrelevant. Thicker doesn't mean better build, and I would balls out trust Samsung's building abilities over PLC's anyday + you can actually buy the Samsung strips when you want - no signing up for a non...

A more blue spectrum will reduce plant strecth to some extent within the genetic disposition - see the NASA studies on plants and light. I would still like to see someone taking up the offer to test it out though :)

Better how?

400w Metal Halide ;)

It has to be only Far Red, a chip like that ''should'' be used as a booster for flowering along with the main 12/12 light. I'd go with original Samsung strips if I were you ;) Actually the Far Red light has little to do with this, once the flowering hormone Florigen has set in the plant will...