Just to clarify the situation on LED light bars you should read the information on the following link:
http://www.tmr.qld.g...delinemay13.pdf
Looks like you will need to cut and paste as it does not show up as a link. This clearly allows the use of a single light bar in QLD until ADR 13 is reviewed in the near future. I would have to look up the requirements for the use of HID's but from memory they can only be used on a vehicle with self levelling headlights to compensate for varying load conditions.
JohnS