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View Full Version : Would 470lumens be enough for two seedlings?


Smokealotapotamus
11-08-2006, 12:09 AM
i started out with 6 plants. as soon as they broke through the soil, i put them under a 400 watt mh bulb (stupid as hell, i know).. needless to say, the plants started to get skinny and shrivle up due to the heat.. 4 died. 2 are still growin, but the leaves are a little yellow.
so i went out and tried to look for some fluorescent lights, but the store i went to only had ONE fluorescent light. its a 33 watt long tube aquarium/grow light and gives out only about 470 lumens. would this be suitable for the seedlings to grow untill vegetation, and then i put them back under the 400 watt. or do i need more lumens? i should also note i put some mylar around the plants for added light, soo any advice would be great ! :thumbsup:
letsburn06
11-08-2006, 12:18 AM
Well for my seedlings the first time i grew i used 1 42 watt for seedlings but just a question cuz i used my mh bulb when mine were seedlings n they were just fine so how close did you have them to the light cuz they aint spose to be close with any mh or hps light.
Smokealotapotamus
11-08-2006, 12:51 AM
they were about 6-12 inches away from the light... is that too close? lol
Smokealotapotamus
11-08-2006, 01:17 AM
do you think it would be best to just move my light up or use the fluorescent just to be safe?
faithless
11-08-2006, 01:21 AM
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I don't think anyone has ever tried with that few lumens...An ordinary 20w fluor gives about 1 500 lumens.
You could use the MH if you keep the seedlings at least a yard away maybe even more until they get sturdier, depending on whatever the temps are at plant level.

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Smokealotapotamus
11-08-2006, 02:55 AM
ok well i went out and i got one 26 watt cfl with 1700 lumens and one 32 watt cfl with 2100 lumens.... how many plants can i place under these lights?
letsburn06
11-08-2006, 03:01 AM
If i was you id stick with your mh since it will help with more growth at a faster rate and yes that was to close lol i kept mine about 48" away from the top of my plants at all times and then when vegetative stage was over i switched to a hps light.
Buddahbear
11-08-2006, 04:51 AM
Dude, germ them on the windowsill if you can...