(11/07/2007) - Great bulb for the money! Crisp white color, and 930 PAR when run on a PFO HQI ballast! Its the only mogul socket metal halide I know of that can beat Iwasaki 6500k's in both color and coral growth. You really won't find a better performing bulb for under $80!

(06/10/2010) - I've used these bulbs for several years, and loved the look, the performance, and the price point. I was using them on an HQI ballast for a few years without any issues, but recently, the bulbs began burning out within a few [3-5] months. No idea if the manufacturer in China has changed specs on these bulbs or not, but they no longer work for very long on HQI ballasts. I'm back to using them on my Ice Cap Eballast with no issues.