Here have 2 Size,please Note That. 
<br />
<br />(1) plastic case without battery
<br />Package Content:
<br />1 x LED Project Lamp (The battery is not included)
<br />1 x Charger (US plug)
<br />
<br />(2) alloy shell with battery
<br />Package Content:
<br />1 x LED Project Lamp (included)
<br />1 x Car Charge
<br />1 x Charger (US plug)
<br />4 x 18650 Battery 
<br />
<br />Feature:
<br />50W 36 LED, 2400 Lumen
<br />3 Modes: Low (White light) / Strong (White light) / Flash Red light and blue light flash alternately, IPX-6 Water-resistant
<br />Toughened Glass Edge Grinding Lenses, Resistant for Dust, Water, and Be Scratched; Vane Design for Cooling More Even and Faster
<br />Perfect for all kinds of indoor and outdoor purposes. Also a good present for family and friends who are crazy about outdoor exercise
<br />
<br />Specification:
<br />LED: 30 White Light LED; 3 Red Flash Light LED; 3 Blue Flash Light LED
<br />LED No.:36 LED
<br />Brightness: 2400 Lumen
<br />Material: Glass + Iron + ABS
<br />Waterproof: IPX-6 Water-resistant
<br />3 Modes: Low (White light) / Strong (White light) / Flash (Red light and blue light flash alternately)
<br />Power Source: Charger or Using 4 * 18650 Li Battery