1.[Upgrade]In order to improve the lighting brightness while increasing the battery life, we used the smart chip and upgraded the battery. The smart chip will reduce the brightness of the headlamp to a certain extent after 5 minutes of turn on (still bright).Please note:This headlamp has a maximum brightness of 1200 lumens in SOS strobe mode and 350 lumens for regular lighting.When it is turned on, please do not face it directly with your eyes or someone else's eyes. 2.[Battery Life] After the upgrade, the battery life is about 3~4 hours in the highest brightness and about 12~14 hours in the XPE LOW brightness. This will be far greater than the previous usage time of 2~3 hours. 3.[Rugged and durable]This Headlamp's weight is just 2.5 ounces.The headlamp can achieve IPX4 level waterproof and pass the 2m drop test. Package has 5 clips and an EVA + PU + Velvet material storage box (the headlamp can be stored after folding), easy to carry, and waterproof and drop-proof. 4.[Unique Design]The headlamp is designed with a wide viewing angle, 230 degrees of ultra-wide angle. You can illuminate the work area you need without moving your head during use. The maximum light mode can illuminate 300 feet away. The headlamp strap is retractable, allowing you to adjust the width that fits your head circumference. 5.[5 modes] The headlamp has 5 lighting modes, COB bright, COB low light, XPE bright, XPE low light, COB + XPE flash, you can choose at will according to your needs. Battery with USB-C charging interface, can be charged in multiple ways, about 2 hours to complete charging, the indicator light is green when charging is complete. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.