IN CD, they have built-in high frequency ballast, available in 3200K, 4200K, 10,000 hours life, cold restrike, CR>90.
In CST, 250W = 1000W tungsten output, a Desisti tech rep told me that they can take MSR daylight lamp giving 5600 deg!!!! It costs substantially less than a HMI kit. It sounds very attractive for me.
Edited by Sing Lo, 26 August 2008 - 03:46 PM.