Anyone have any experience with grow lights for greenhouse or growth chamber? Most of them I have seen and experienced are really pink and mess with your eyes. I have have been told of a supplier with a nice photo-synthetically effiecient spectrum but have three alternative spectrums that get progressively whiter. Problem is I don't know the name of that supplier. I'm looking for those that will replace a 1000watt sodium or metal halide. Thanks for any advice from those with greenhouse experience.