High Quality Auto/Motor HID Kit 1. Easy installation ... a) The crust of ballast is made of aluminum alloy , small capacity, dispelling hot quickly which guarantees the ... the silica gelmaterial which is fireproof, anti-high temperature, anti-high voltage and anti-erode; c) Having the ... silica gel material which is fireproof, anti-high temperature, anti-high voltage and anti-erode; e) Utilizing inserting ...