Compactly & Portable Design: This low weight flashlight is ideal for on the go professional and outdoor enthusiasts needing reliability lighting User Friendly Operate: Designed with intuitively switching and port for quick activation during urgent situations, ensuring effortless touch control in any lighting condition Double Power Compatibility: Works seamlessly for battery systems or direct power supply, offering flexible charging option for continuous use in workshops or remote locations Metal Construction: The durability metal housing enhances heat dissipation, maintaining stable during extended high intensity operate while wear Versatile Lighting Solution: This 21V lithium batteries light features three adjustable brightness mode, perfect for outdoor emergencies, camping, and fishing with its powerful LED lighting, Manufacturer: yanzunlrn