Canbus Deco" is abbreviation of "canbus decoder ballast". MATEC engineers pureed 3 years of time to develop it. This ballast is an integration of "warning canceller","capacitor wire","wave filter","resister cable","relay harness","cheating harness". So this "Canbus Deco" HID can be used in almost all of cars(see point 3 Application cases.)
 
2.  How it works?
1)  Intellective static circuit standby canbus testing.
2)  With a fourth-order anti-interference system built in.
3)  Dual purification on power supply by CMR and DMR.
4)  Working in coordination with original lighting circuit.
5)  Multi-point GND for high safety

3.  Application Cases (Cars which we usually need some harness without "canbus deco" ballast): 

BMW
  X5/***1/***1/E*0/E*9/5 series/7series
V.W
  SAGITAR/ MAGOTAN/ TIGUAN/ TOUAREG/ CC/ GOLF6/ PASSAT
SKODA
  OCTAVIA/ SUPERB
FORD
   FOX/ MAVERICK
LANDROVER
BUICK
   LACROSSE/ FIRSTLAND GL8