Features: 1) all of crust made of alnico metal 2) all of inside are filled with chinaware that can endure high 3) lamp types: h4 (-h/l), , 9004, 9007, h13 4) color temperature: 4, 000k - 12, 000k or above 5) light colors: sun light color, sky blue, light blue, dark blue 6) high brightness: three times luminous flux as that of halogen tungsten lamp 7) long lifetime: over 3, 000hrs 8)low power consumption 9) fashionable style