Don't think so. I am about the only one that I am aware of doing successful grows soley with warm white LEDS.
RackitMan Reviewed by RackitMan on . LED News Cree claims new LED benchmark 22 Feb 2012 Two new products demonstrate the company's faith in silicon carbide-based LEDs for performance and efficacy. Cree XLamp XT-E LED developer Cree has unveiled its XLamp XT-E white LED, which the company believes sets a new benchmark for performance. Rating: 5