... HID bulbs are individually tested and engineered for maximum light output. Each bulb must pass a 200 ... test, true color test, rapid on off test, and a max light output test. They have no equal.Features: 1 ... Color temperature(K): 3000k,4300K,5000K,6000K,8000K,10000K,12000K and above4) Luminous (LM) flux: 3000 -/+ 200LM 5) ... , true color test, rapid on off test, and a max light output test Auto HID xenon ...