| Yes, Ceramic Metal Halide (CMH) is the best full-spectrum light. They are maximum of 400watt. Philips invented the new technology. With theirs you must choose either horizontal or vertical. The CRI (color rendering index) is 85% of natural sunlight. Replacement bulb prices are about $70 each. GE also makes a 400w CMH. Theirs is 80 CRI, a higher output, and universal position orientation. Ballasts for these are either magnetic (400w HPS ballast) or digital (GE makes the only one that will work on CMH). The digital GE ballast requires 240v. You could install 240v by running 13-4 wire from your breaker box. The digital ballast will save 10-20% off your electrical bill. They prolong bulb life and performance. For information on where to purchase, you may contact me personally: euroindoorgrow@yahoo.com | 
