This is the brass model of the ReyLight Pineapple Mini MK3 flashlight. It features a Nichia 519A 4000K LED. It is new, unopened, and still in its original packaging (see photo 1). It runs on a 10440 lithium-ion rechargeable battery (included) or a AAA battery/Ni-MH battery. The flashlight body and the included 10440 battery do not have a charging port, so a separate charger is required for use. Mode settings are available. Group 1: (Moonlight)-2%-20%-100% (Default) Group 2: (ML)-10%-40%-100% Group 3: (ML)-2%-10%-50% Group 4: (ML)-50%-100%-strobe-SOS Instructions for changing the settings are written below. https://reylight.net/pages/programming-guide For reference, photos 2-5 show an opened copper model. I have various copper flashlights, but this one is exceptionally beautiful. The brass model is likely the same.