The HOG head contains a light head of your chosen emitter. It is compatible with our 21700 handheld body, 21700 WML body, and the 21700 body booster packages. You can find all those offering HERE. Due to the chemical process that takes place during Type 3 Hardcoat, the finish on the product can vary from one to the next, even if it is the same batch. We strive to create as tight of a range as possible, and match parts to the best of our ability, but be aware that there may be slight variation between sections of the light. Features: Made in the USA Threads for 21700 size body Lifetime guarantee Drivers are fully potted and tested. 6061 Series Alum bezel with Mil-Spec Hard Anodizing Ultra clear BOROFLOAT® lens allows 98-99% light transmittance OKW specs: 720 Lumens 170,000 Candela Constant on runtime 3 hours and 10 minutes PLHv2 specs: 1350 Lumens 120,000 Candela Constant on runtime 2½ hours Lithium CR123 cells are not supported and if used will cause the cells to heat up and possibly explode or catch fire. We recommend our 21700
