Advanced high-pressure Xenon technology. Precision machined aluminum reflector with heat sink and high heat resistant orange peel coating. Pre-focused for maximal range. --Two types: one with 26. 5mm diameter, the other is 23. 00mm--precision machined aluminum reflector--high pressure bi-pin xenon lamp reflector assembly, 3.0, 3. 6, 6. 0,7. 6, 9.0,12. 0 V are available for CR123A or rechargeable lithium batteries--unique filament design, focused lighting beam--super brightness, output max. Range from 60 to 350 lumens--compatible with all flashlights with d23 and d26 sized modules, such as surefire-6P/C2/D2/G2/G2Z/M2/Z2, G&P- G60/G90/6P and Wolfeye.