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Thread: LED lights.....ran across an interesting experiment

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    rattler's Avatar
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    My one comment is it does not seem fair to compare a 4 tube fl fixture against the led's. Maybe only a 2 tube fixture would be a better test?
    heres my thought......if a $200plus LED setup cant compete with a 4 tupe flourecent setup but might with a 2 tube.....the LED's are a money pit andnothing else.......the LED set up he bought was suggested for a 1x3 foot area and moving the lights closer will only decrease this area....on 1 foot deep shelves, i use 4 tubes(18 inches deep i use 6).......if i have to dish out close to $500 to cover an area $25 worth of flourecents will do...........well i would rather dump my money into plants
    cervid serial killer
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    rattler's Avatar
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    BTW if you run across any other experiments like this with LED's i really am interested in seeing them........as i said i dont think this iwas the perfect or end all experiment but its provided ME with enough info that i personally dont think LED's are worth dumping money into for an experiment at the moment....but i do want more data before writing them off completely........
    cervid serial killer
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    RL7836's Avatar
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    Quote Originally Posted by rattler_mt View Post
    heres my thought......if a $200plus LED setup cant compete with a 4 tupe flourecent setup but might with a 2 tube.....the LED's are a money pit andnothing else.......the LED set up he bought was suggested for a 1x3 foot area and moving the lights closer will only decrease this area....on 1 foot deep shelves, i use 4 tubes(18 inches deep i use 6).......if i have to dish out close to $500 to cover an area $25 worth of flourecents will do...........well i would rather dump my money into plants
    Agreed. However, given the increase in efficiency and longer life (vs fluor lamp & ballast), LEDs should command a premium. Once we get a test where the LEDs are close to comparable and have an idea of lifespan and energy savings, it should be easy to calculate a break even cost.
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    rattler's Avatar
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    However, given the increase in efficiency and longer life (vs fluor lamp & ballast), LEDs should command a premium.
    very true......however i dont like the idea of fronting major omounts of money for what at the moment amounts to an experiment.......i REALLY do want to see more reports of how plants grow long term for "home growers" and not someone in a lab and see weither it becomes worth it to switch to LEDs. given my grow setup at the moment LEDs would have to last significantly longer than 8 years.......im currently only replacing maybe 4 fixtures a year and going through 2-$20 cases of lights for around 24 linear feet of shelf space(mix of 12 and 18 inch wide) so for an initial out put of around $160 for fixtures, ~$60 for bulbs and an annual cost of $80 for replacing bulbs and burned out fixtures and given my current setup doesnt affect my electric bill much..........its going to take a SIGNIFICANT amount of money to change to LED to cover the 24 feet of shelves so the fixtures, LED's themselves would need to last an aweful long time to make sence to me.

    i WOULD like to try LEDs for growing Heli's though due to the lack of heat they put off........that sounds like an interesting possibility.....
    cervid serial killer
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    Gardening freak! tommyr's Avatar
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    They need to re-do the test using those bright WHITE LEDs and move them much closer. Also, they should use regular florescent tubes instead of aquarium tubes or specialty tubes.
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    Don't eat me,... Mr. Flytrap thbjr's Avatar
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    I found this while looking at t5 floros the other day. http://www.hidhut.com/catalog/catalo...fo-p-1372.html
    Looks a bit rich for my little meat eaters.

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    Here is a link to a page dedicated to experimenting with different LED grow lights:
    www.greenpinelane.com
    Nothing scientific, but does show that LED lights can be used successfully- the plant chosen for the experiments being tomatos, which were grown on to produce fruit.
    I agree about the insane initial investment required. They likely won't ever become an alternative for those using shop light setups, but as the technology improves they should become a viable replacement for HID lighting.

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