[Purilite]

The whole time I have been here i have seen to many threads on "what light should i buy" or "will this light work". So I have some free time and I am just going to go through the basics.
Lights to use:
I'm going from the best(you can use) to the worst ( you can use )

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HPS (high pressure sodium) and MH (Metal Halide) light


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The fluorescent "tube" light.


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The compact fluorescent light's


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Lights not to use!:

normal light ( Incandescent )


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Halogen Light Bulbs


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Black light

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Grow light (Incandescent )


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more will be added later..( this is just a start )