I have put Hids in my car from the eBay seller link on the initial pages. Hi lo and fogs. 4300k. I picked that colour as it has the highest usable light output and is similar to standard so won't stand out too much for police. While LEDs may be brighter, they dont throw the light far enough ahead. I do a lot of night and highway driving so good light throw was important. In regard to legality, im sure that HIDs and LEDs are both no compliant in NSW for the reasons discussed earlier. There is also a heap of regs for the halogen globe alone about aim, cut offs and colour so it would be more than just the self levelling and projector housings you would need to change to get over the line. Had them a few months now and never been flashed by an oncoming car. I haven't adjusted the headlights either. Fitting was difficult as described earlier. For the info of others that are willing to take the risk, when you install the hi and low beam, make sure they are seated perfect in the housing. Easier said than done as it's all by feel. But I fiddled with mine for ages as they didn't look right. So what I did is turned them on and then fitted them to the housing. That way I could see the light pattern and was able to get them to match and make sure the were installed properly. They make a huge difference and glad I made the swap.