Quote Originally Posted by deeproots
Well khyberkitsune

Bro thats one thing i havent got a clue about is grow lights how they work and ect. Just starting to find out how to use them never mind what make,s om work ha. But id say if there was a way to get that high intensity discharge from a low watt bulb in a cfl form that would be cool. Going to check out your log,s bro it looks your doing great with your leds.:hippy:
I wouldn't necessarily say low wattage for a high intensity discharge, although that could be possible as well. I would think it possible to make a high pressure high-discharge low-wattage fluorescent lamp given a proper bulb material construction, since the majority of the output comes from the mercury and then high amounts of excitable gas in the tube, which requires high pressures and thus a strong tube to contain (typically some sort of fused silica or quartz or alumiglass.) The more gas that hits the excitation state (within a proper ratio, there's always the law of diminishing returns, which you can see in 600w HPS vs 1000w HPS in the lumens output) the more light possible to be output.

However, how much heat that could generate remains to be seen, as well as the efficiency overall, not just the lamp itself, but ballast and thermal dissipation and output as well.

Phatjay, I would suggest you go a little more scientific and try to hit one gram per kilowatt-hour of power used. That might take a bit more math, but I think you'll find it something more impressive once you do the comparison math.
khyberkitsune Reviewed by khyberkitsune on . fluorescent lights guys, i only havs 2 grows under my small belt haha but i done them the same. i grew in soil and used 4 cool white tubes the 2 foot ones i think they are to veg, i let them veg for at least 8 weeks before changing to hps to flower. are there new types of fluorescent lights out now? i seen some guy on youtube and he was using 1 4 foot tube to veg at least 10 plants and they were pritty big. can anyone bring me up to date on what iv missed over the past 4 years. cheers Rating: 5