The moon comet mkii has more power and wider beam angle than the original comet the light has a 1 piece 16 chip cob high powered led which produces a 300 degree beam angle and a 39 degree spot angle this provides you with both a wide light pattern with a much more intense focal point the light is also rechargeable which makes it super convenient to charge once you have got to work or even on the train to work working alongside the handy usb charging is the battery life indicator which warns