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Thread: Grolux Wide Spectrum Bulbs 20 Watts

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    Tropical Fish Enthusiast jimscott's Avatar
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    Grolux Wide Spectrum Bulbs 20 Watts

    I've got a grow rack and a mini-greenhouse / terrarium with 2 - 24" bulbs per fixture. Do 40 Watt bulbs exist? I'm not getting the color that I would like to see on them, particularly Petiolaris Complex.

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    i dont do pots. amphirion's Avatar
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    how close are your plants to the lights? mine are about 3-4 inches away from the light source.
    " You keep using that word. I do not think it means what you think it means." -Inigo Montoya
    +growlist
    +petiolaris drosera going dormant?
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    SeaQuestDSV's Avatar
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    What's the current wattage?

    I had two - 24" T5 HO bulbs on my old shelf (which I still use on my current) and they gave me leaf burn like no other when I had them too close. Once I had the distance right I got great coloration and minimal leaf burn.

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    Tropical Fish Enthusiast jimscott's Avatar
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    I have 2-20W bulbs in the fixture and they are ~3" above them.

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    SeaQuestDSV's Avatar
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    Oh wow. My reading comprehension was terrible there.

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    Tropical Fish Enthusiast jimscott's Avatar
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    Quote Originally Posted by SeaQuestDSV View Post
    Oh wow. My reading comprehension was terrible there.
    LOL! That's a guy thing!

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    Frilleon's Avatar
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    I have used agrosun brand in the 2' and 4' with great results in both growth and color. The only way I see to get a 40 watt bulb is to move up to the 4' bulb. If your looking for better color nothing really beats the T5. My plants colored up much brighter when I moved them from the agrosun bulbs to T5's. I'll keep looking to see if there are any bulbs in the
    2' lengths that are 40watts but would guess there are not going to be a lot.
    Grow List: http://www.terraforums.com/forums/sh...d.php?t=116427
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    Tropical Fish Enthusiast jimscott's Avatar
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    I am limited to 2' bulbs. I may also be limited by wattage allowed. Not sure yet.

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