Search results for query: *

Oh, and FYI: I got a 2100 lumen total increase at an expense of 26 watts extra and a negligible increase in temps. The fixture now uses 91 watts as opposed to a standard use of 65 watts. Temps increased by 10 degrees F at the tubes, room temps might have gone up by one or two degrees overall but...

New setup: 8-tube T5HO grow light plus a two-tube overdriven T8 fixture. Plants on 3rd week flower and looking great. Buds everywhere! Still working on the LED idea, went and got another ten LED strips from the junkyard the other day for $10. Tested each for output and brightness, choosing only...

This video shows how to combine 2 $10 fixtures to produce a single 2-tube overdriven unit. I wouldn't really put much stock in his estimate of "twice as much light" without seeing a light meter reading, though. - http://www.youtube.com/watch?v=WJncJmkQPtM For more info Google "overdriving...

How are you going to cool a closet that size with HID lighting? CFL's are so cheap, it's silly NOT to use them. At Wal-Mart, 26W 2700k's sell for $5.98 a three-pack.

Thanks for the replies, everyone. My OD lights are still running just fine! A quick reading of my OD 2-tube T8 with 3000k tubes in it shows 4000+ lm each. I have achieved 2000 lumens at the floor with the room empty and the lights at 32". Current flower setup is 3 overhead 2-tube T8...

The multi-chip high-wattage LED's are all over Ebay. 9000-9500lm 100W LED, Ebay. 2850-3050K color. I know $35.87 is high for one light and you also have to buy a power supply for it and maybe a lens, but damn. Nearly 10,000lm from a single point source? That's HID territory. That...

I'm not using them for a micro grow, though.

It works great. New fixture with 6500k 32W tubes: as advertised, 2700 lm each. 70 degree temps @ 15 minutes run-time with analog thermometer at 2" from tubes. New fixture, rewired with 4-tube ballast and same tubes: 3800 lm each. 80 degree temps, same thermometer, same time, same place...

This is popular with aquarium people. Apparently all you have to do is re-wire a 2-tube standard T8 shop light with a 4-tube T8 electronic ballast (or stick another 2-tube ballast into a 2-tube fixture) and the result is amplified light output at the same color temp, at the cost of shorter tube...

As popular as these lights are, shouldn't there be a separate sub-forum to discuss ideas and mods for fluorescent and CFL light use?