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i just started two clones of blueberry about a week ago under a 70 watt metal halide in a cabinet, and today i found a 65 watt plant light (the ones that have a blue bulb) in my garage. i was wondering how this would effect my grow. the carton says it makes plants greener and healthier, but i don't think the makers had marijuana in mind.
I don't know what kind of light you are talking about, but if it's made for plants it can't hurt and it will almost double your wattage so it would be a good thing. :thumbsup:
JMO
PC:smokin:
are the clones rooted?
cut clones only require cfl's
the extra light will help after they've rooted and go to veg.
good find :thumbsup:
Is it an incandescent bulb? That is, does it look like a regular light bulb and plug into a regular light socket? If so, don't use it! It will add way more heat and way less light than your other bulb. You'd be much better off with a 6500K compact fluorescent or something similar.
yeah it's an incandescent. it looks like this for those of you who aren't too sure.
i had a feeling it would add heat, but it doesn't even put out enough light to make it worth it?
Good call - It never ocurred to me some company would paint a bulb blue and call it a grow light. What a scam!Quote:
Originally Posted by khronik
Sent ya some rep for that one.:thumbsup:
PC :smokin:
Heh, thanks. When he said it was colored blue, I figured it had to be incandescent. No other lights that I know of are colored, except maybe LEDs. By the way, the blue coating actually makes the heat problem worse than just a regular light bulb, by absorbing longer-wavelength light and converting it to heat.
I probably shouldn't care about rep, but I keep trying to get it anyway! I pounded out that whole lighting guide and didn't get any rep for that (although it was made sticky), but then I did get rep from some really random, bizarre comments. Guess I have to act less like an engineer and more like a stoner! :smokin:
Oh, and incandescent lights use too much electricity and give off too much heat for them to be practical. It's not worth potentially frying your plants.
i noticed today that my plants started to take a brighter green. my immediate thought was nutrient disorder, but then after some thought doubted that as they are so young. i remembered reading on the carton that it said the bulb made plants greener, and i think that the bulb is the source of the brighter green. the brightness just randomly spread out on the leaves in the area that was most covered by the light that the bulb produced. i was debating whether to lose the light or not when the screw holding it gave out and the light fell and the bulb broke. i took it as a sign. i hope the greeness isn't bad...?
A bluer light will make your plants greener. They think they're seeing the sky, and so they turn bright green to absorb all that direct sunlight they're anticipating. I have found this to be the case with 6500K fluorescent lights too though. For a while I was growing a few plants outside and a few plants inside under 6500K fluorescent lights. The indoor ones were much greener. I've never used metal halide lights for growing, but I imagine they're quite blue too.
The problem isn't that the bulb isn't giving off the right spectrum. It probably is. It's just that for the energy you're using and the heat that you'll be giving off, it's not worth it. These types of bulbs aren't sold in stores anymore because small fluorescent lights are so much better.
*phew* thanks for clearing that up for me. i was afraid that that light did something to mah babies.