There are 2 different versions of the Mag LED on the market at the present time. The original MagLED is the same as the incan version, with an LED module that is interchangeable with the regular bulb. This is knows as the "Lux Version" because the Led is a Luxeon. There is also a newer "Rebel" version that, as you would guess, uses a Rebel LED. This one is NOT the same as the incan version and is not interchangeable with older, original MagLED ( but is interchangeable with the multi-mode LED MiniMag ). So...your options depend on what version of light you are trying to repair/upgrade.
Actually, both versions are "Luxeon". There is no single emitter referred to simply as "Luxeon".
Luxeon is the manufacturer of both the "Rebel" and "Lux-III", which is the emitter in the original MagLED, as well as numerous other emitters such as the "Lux-I", "K2" and "Lux-V".
The OP stated he had broken one of the "legs" off the original emitter. The Rebel doesn't have legs, the Lux-III does.
The "Rebel" version is a recent release. He said he had removed the emitter several times already which would imply to me he had the light for a while.
The mention of breaking a leg off the emitter, which was the reason for the post in the first place, as well as the seeming length of ownership led me to the conclusion he had the Lux-III version.
Its possible he may have the Rebel version and broke one of the connectors of the bottom of the Star, but he said it broke off the "emitter", not the mounting star.
-Michael