reserve lighting unit from other bikes work?

[timgray]

I think my reserve lighting unit went bad. I cleaned the handlebar switch and checked all I can and I still have a dead low beam. Yes the bulb is good. The REserve lighting unit is the only thing I have not replaced.

 

Anyone know if the YAMAHA reserve lighting unit that was used on other bikes is the same thing? Ebay is full of RLU's from other yamaha bikes and was wondering if any of those will work.