i hate to post links to other crow based forums, but ICMAG has a HUGE thread going on about these lights, its something like 20 pages long...

they look to be MUCH better for flowering and vegging than any other 400W bulb you can get.

******just remember that you CANNOT use these bulbs in a digital ballast!!!!!!!!!********

International Cannagraphic Magazine Forums - Ceramic Metal Halide (CMH)