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Last Updated: January 05, 2010

High Intensity Discharged ballast

Once more here i am in continue of giving you out some ideas and do it yourself thing..but now lets go to another level...the electrical side...and presenting inside what i called "LIGHT ME UP"....the hid ballast..

first and foremost what is HID lamp?...High Intensity Disacharge lamp

High-intensity discharge (HID) lamp -- A lamp that produces light by passing electricity through gas, which causes the gas to glow. Examples of HID lamps are mercury vapor lamps, metal halide lamps, and high-pressure sodium lamps. HID lamps have extremely long life and emit far more lumens per fixture than do fluorescent lights.

Hid lamp is not the same as those filament bulbs as our stock bulbs. this hid lamps must be ignited by means of the so called BALLAST to provide a brief high voltage to the lamp this producing arc that makes the lamp glow...

Common problems motorcyclist that installed HID lamp, forgotten that ballast are so prone to malfunction espescially when it comes to the input voltage..that it must not exceed 16 volts for a long period of time. and sometimes, forgot that even if it shielded, (some dont have epoxy resin) are prone to moisture and proper positioning of the ballast must be set aside...the less water to penetrate in area on a motorcycle the best possible position of the ballast.

now lets move on to the inside of a HID ballast...


HID ballast top cover remove and as you can see the epoxy..this unit is just partially filled with epoxy resin that didnt cover all components that shall be prone to moisture which in time will fail. This unit actually has a problem that it can start up the lamp but cant sustain the current to drive the lamp thus in turn make the lamp glow off after start up..In order to repair this i have to remove the epoxy resins. Im in luck this time coz unlike my previous attempt to open one...this is much easier..

time to get moving...to remove the board from its housing we need to split the epoxy resin on all of the side by means of any flat spatula..(DO NOT USE FLAT screwdriver, we wont be able to know if there are components at the sides that might get damaged by the screwdriver.


when it feels the board aint stuck with the metal housing time for a push, gently on the top down not all the way since there still a component that needs to be desolder and thats the high tension wire and the supply rail of the ballast...as shown below



To be continued................

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