Leapers have some new UTG lamp heads out which can be swapped with their current units:
Integral Light Head with 16mm 3V R2 LED, Reflector, circuit board, aluminum head
Item No.: IFH-016
Brand: UTG®Detail Information:
Integral LED Front End Assembly Replacement Part, Complete with 16mm 3V R2 LED, Reflector, Circuit Board, Aluminum Head
Light Source Type: CREE R2 LED
Voltage(V): 3
Max. Output(Lumens): 120
Battery Operating Time: 1hr+
Reflector Diameter: 16mm(Leapers )