This thing was not easy to build into a triple, but once I finished it it was well worth it. I had to grind down an MTN-20DD to fit this slimmer host, and grind a copper heat sink meant for a convoy s2 to fit. Bypassed both the driver and tail clicky and put a Carclo 10507 in front of triple XP-L HI U5 4000k's. Because of all the grinding that took much longer than I anticipated.