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Alita and Secoh are good brands. I currently have a Secoh SLL-40 running four eight-inch Alita air stones in the flower room. A pair of those stones are driven by an Alita AL-15A in the veg room. Do NOT buy the Alita AL-6A because the tiny air inlet causes a steady high-pitched whistle that...

I prefer the wall mount version with a cord. http://growershouse.com/sentinel-brt-1alr-wm-basic-recycle-timer-low-range-wall-mount These "Autopilots" are great if a person also has a pair of HID lights to control (Sunlight Supply has the same thing with different graphics)...

It's just stoner talk, truly meaningless without a time parameter.

I'm surprised this hasn't been asked yet: Is there an LSD-25 model?

SM, this is a big subject and you might want to specify a particular state.

Very interesting, that bleaching theory. I've encountered bleaching with Lumigrow and assumed it was from the blues. Someone here posted a study that showed bleaching was from excess red. What wavelength will stimulate Xanthophyll? (Xanthophylls (originally phylloxanthins) are yellow...

Where might Mr Flux material be located? (There is a MR FLuX registered here with no posts.)

I googled it but I'm in Seattle and all I got was baseball player Robinson Cano. I thought he was talking about a portable vape. Myself, I'm eating a brownie.

Words to live by!

A number 1 phillips screwdriver works well. I have an assortment of nonconductive pot tweakers but they are not necessary.

UZ, your A model dims down to 50%; a B model can go down to 10% with external components. I like A models for simplicity.

I am skeptical of Mechatronix, Abiqua. The Giga HBG is only designed to mount a 160W driver (3.3A). Picturing these up high in a factory during the summer . . .

Nope, I've been busy trying to get two new hydroponic systems going right now. Post #847 is what I'm going to build. https://www.rollitup.org/t/pictures-of-your-diy-lights-post-your-pics.871625/page-43

OMS, you need to power down the drivers on the AC side before switching the DC, per Mean Well.

I bought a ten pack of these from CDIweb.com for the CXB3590/CXA3590. I haven't measured flatness but quality looks good. Also bought a ten pack of HBG-90 (1400mA, dimmable) from onlinecomponents.com. Edit: adapter plate required for Giga; direct fit on Mega ModuLED.

Thanks for stocking 72V CXB3590 3500K, welight.

Homegrown Lights spent a lot of money for custom aluminum extrusions but the only thing worth reusing is a generic heatsink. I've got plenty of that from heatsinkusa.com. And it's not a box: This thing does OK for veg (450nm + 630nm) but it is a heater, uncomfortable to hold your hand on the...

I'd never heard of Roleadro. http://www.amazon.com/Roleadro-Grow-Light-Spectrum-Flowering/dp/B013QLEYTW I recently took apart an old-school Procyon 100 but didn't see any way of salvaging it for a decent COB build.

[ONE in stock right now!] "The LPF11180-CUT Zhaga Pin Fin LED cooler is specifically designed for the MAU5 kit. The Cooler is predrilled and tapped for Ideal Connectors to suit Cree CXB3590. Please note this heatsink is designed to be used with CXB3590 run soft to a max of 50 Watt, should you...

Hey, I know, let's make this an LED vs HID thread! My reason for having $3,000 worth of luminaires in that picture: fire safety, mainly in consideration of a disabled person in the household.