Hey! I just ordered a 250 watt HPS light for growing peppers over the winter. I always wanted to have full control over my bhut jolokia peppers, seeing as how it's next to impossible to grow them outdoors in the Montreal area.
I want to know if 250 watt HPS is ok for lets say 2 naga jolokia plants. I heard a mix between Mh, and HPS is the best... but i simply do not have the money to buy a switchable light fixture. So the 250 HPS will have to do.
Your image is proof that blue light is unnecessary for compact growth.
you can use a ceramic metal halide with your ballast this CMH lamp has a spectral output like the sun.
No, these bulbs have a color temperature of 4K whereas sunlight has 6K. CMH are good because they have plenty of far red which is involved in the Emerson Enhancement Effect.
It may interest you to know that not all HPS bulbs are equal. The spectral distribution widens with increased plasma pressure. Philips Son Agro, http://www.lighting.philips.com/us_e...ad/p-2707b.pdf , is one bulb with extra pressure. A HPS bulb with even higher pressure is Philips White SonŽ Bulbs but the maximum available wattage is 100. Philips advertises more blue output, but, more importantly, these bulbs have more far red output. I suspect that combining a 100 watt White Son bulb with a 400 watt regular MH (such as Sylvania Metalarc) would be a good combination.