1. Suitable for RYOBI energy instruments 18V lithium nickel battery, as show in the following picture:2. Input parameters: 14 . Output parameters: 6000-6500K . This light is as brilliant because the automobile headlights, don&;t goal the beam at humans or animal,or even from distance. This product doesn't contain any battery. If you have not bought the battery,you deserve to buy it youself.