I think the cheato should do fine, the cree white's are a 6500 - 10K bulb, that's what i use on mine and they grow great. I think the reason people have problems is the intensity of the light, most algee gets nuked in VERY bright lights, and LED's have the same intensity(lumens) per watt as some of the best MH bulb available. Just keep them up a bit and don't use optics and they'll do fine.
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