I've seen some now that are dual spectrum, but I'm not convinced they are worth it. Get a 6400k light, you can't go wrong with that. Brand is not so important, 80% of them are actually all made by the same company. Wattage to use depends on the size of the space you have, any of the from 105-250 are good. Many of the one bigger than 125 watts need an adapter if you plan to use them in a standard light socket. Find your best deal and go for it! :Sharing One: