1. WF-501B XML T6 LED 501B White Light Flashlight.2. 5-mode. Max 1200LM. For 1x 18650 Battery (not include).3. Pressure switch: Press the tail then the light on. Release then the light off.4. Bicycle Gun Mount Holder Clip: 2 hole. Aluminum Alloy. Ring Diameter: 25mm.Package included:1x LED 501B Flashlight. (Battery not included).1x Pressure switch.1x Bicycle Gun Mount Holder Clip.