Features:High power led lasts more than 10,000 hours life span.High quality anodized Aerospace grade aluminum alloy material.Emitter Type: 1xXHP50.2 (2500LM)/XHP70.2 (4000LM)LEDLED color temperature: White light 6000K/Yellow3200KBody Color: BlackCase Material: 6061 -grade aluminum: Toughened gla Cup material: Aluminum alloytexturedreflective cup(better heating diffusion, better ennce)Switch: ic slide switch(steple ding)Waterproof: IPX8, under water 80 meters(ble, lubricated double O-ring sealsfor twice the security to function under water)Power by: 2 units 26650 batteryDimensions: 210mm(length) × 50mm(head) × 40mm(tail)Net Weight: 309gPackageA (white)includes:(No battery, no charger)1x Diving Flight1x LanyardPackageB(white)includes:1x Diving Flight1x Lanyard2x rechargeable 26650 3.7V Li-ion batteryPackageC(white)includes:1x Diving Flight1x Lanyard2x rechargeable 26650 3.7V Li-ion battery1x AC Charger(Input: AC100V-240V 50/60Hz, Output: DC 4.2V 1.5A Compartible with: Li-ion battery 18650 26650)Package D(Yellow)includes:(No battery, no charger)1x Diving Flight1x LanyardPackageE(Yellow)includes:1x Diving Flight1x Lanyard2x rechargeable 26650 3.7V Li-ion batteryPackageF(Yellow)includes:1x Diving Flight1x Lanyard2x rechargeable 26650 3.7V Li-ion battery1x AC Charger(Input: AC100V-240V 50/60Hz, Output: DC 4.2V 1.5A Compartible with: Li-ion battery 18650 26650)Package G(xhp50 white)includes:(No battery, no charger)1x Diving Flight1x LanyardPackage K(xhp50 yellow)includes:(No battery, no charger)1x Diving Flight1x LanyardWe haveUS/UK/EU/AUPlug for AC Charger, Please note which plug you want in the order. Thank you!Maintenance Tips:1.Do not shine the light beam directly into eyes.2.Do not installing the battery re polarity.3.After use you should wash your diving lights thoroughly in fresh water along with the rest of your equipment.4.Clean, lubricate and inspect the O-rings, that would better for the flight's long-term use.5.Clean the battery and electrical contacts.6.Store your scuba diving lights without their batteries to prevent any poible corrosion from battery leakage.7.Always recharge the battery when the light goes dim, thus overwork of batteries can be avoided and lifetime could be extended.8.Store your dive lights in a cool dry p out of direct sunlight.