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Ah, not so! DE bulbs are not unique in any way but one -- acoustic resonance. Like a guitar string, everything shakes at some resonant frequency. Single-ended bulbs come apart in the upper audio range since they were designed for core & coil at 60 Hz. Hence, Digital Bulbs are just regular...

COB is LED for people who don't have access to automated assembly equipment. As we say: LEDs is LEDs. You can make your own COB modules if you've got the right toys in the shop! Cree does, Osram does, we do too. I like LEDs. That said, the HID vs. LED thing is going to be an ongoing...

I've personally tested the Revolutiuon (mine, of course), Gavita, Phantom, Galaxy and PL. We tested quite a few, and I don't like to bash people, so I'd prefer to say that these did well rather than list the Bad and the Ugly. I haven't tested any Solistek gear recently, only a couple years...

Anytime! Taking you questions one at a time: 1. The output frequency in Hertz, or kilohertz, on a ballast impacts the cost of the design more than anything else. Higher frequency means smaller inductors, and the resonant inductor (used to strike the bulb in these designs) is the single most...

Hi, Greg Richter here. I designed the Revolution Deva light, and as an electronic engineer of 30+ years experience I can help you with your EMI/RFI question. Few things: CMH ballasts do not put out zero EMI. The boost PFC stage can radiate quite a lot, and all arc-light ballasts have this...

Thanks! We keep the costs low by keeping the company small. Only one engineer needed here!

Call Atlantis Hdroponics/ Viagrow as they will be cranking up a pre-sale. They were the first shop to sign up and should have stock in a month. A month after that Left Coast Hydro will be receiving their stock as well as Stealth Hydro for all the Aussies in the house.

It runs at exactly 150hz because we found that it would flicker if we got it any lower. What is it that your looking for? Our EMI levels are below the threshold of the machine running at the same or less as a charging iPad. Super quite! Greg is available for discussion most days and I will have...

Got a question that only a scientist or engineer can answer? Ask us here and Greg will answer. [email protected]

Our scientist and aerospace engineer would agree with you on that. That's why we went low frequency.

Bringing aerospace quality equipment to hydroponic growing from the scientist that brought the world modern day intertial navigation.

My bad .. I'm just getting to know how this forrum woks. I'll remove it for you. And actually I'm realizing I didn't even comment on the thread I thought I did. Sorry about that.

We also manufacture a Silent Square wave low frequency ballast and it's class B. It's the DEva integrated lighting system with Ushio Pro Plus bulb all in one. Designed by an aerospace EE for amazing performance and longevity. Have you seen it?

Just thought you'd like to know we design, build and manufacture all of our own lighting equipment and not in China :) We are out of Bagkok because we are living the Expat life in Thailand. Check us out! www. RevolutionMicro.com I would love to hear your thoughts on our stuff.

http://www.grozine.com/2015/11/20/deva-hps-grow-lighting-system/

https://issuu.com/gardenculturemagazine/docs/garden_culture_uk_9_issuu

Aerospace Engineered electronics specialized for industrial horticultural, lighting & control.