1 .This product shell material of high strength aluminum alloy. Precision machining. Hard tough water proof. Seismic pressure. Abrasion resistance to corrosion. Easy deformation characteristics. 2. The precise CNC machining thread drawing smooth; Army Regulation anodized surface like a luxury car paint texture. Slip surface design comfortable and durable. 3. Photometric stability high brightness. Irradiation distance and other characteristics. Life up to 100000 hours. Life without changing the lamp. 4.Using low impedance circuit loop design . Extend battery life. Achieve the best energy saving effect.