The Nebo Davinci 3500 is a powerful rechargeable handheld flashlight giving up to 3,500 lumens. A mode selection dial lets you choose High (3,500 lumens, about 2 hours), Medium (700 lumens, 5 hours), Low (70 lumens, 20 hours) or Strobe before switching on with the rear button, and a 3x zoom adjusts the beam from flood to spot, reaching up to about 131 m. The battery also works as a 4,500 mAh power bank for charging a phone. The anodised aircraft-grade aluminium body is IP67 waterproof and dust resistant. It runs on the included 21700 7.4 V 4,500 mAh Li-ion battery, which recharges by micro-USB in 7 to 14 hours. It is about 206 mm long and weighs about 900 g, so it suits farm, security and vehicle use. In the box: flashlight, 21700 battery, micro-USB cable, detachable lanyard and manual.