Olight's Self-Developed LED: ArkPro Ultra features a proprietary EIP 1 LED chip, which produces an expansive, crystal-clear beam with a pleasing tint. It’s especially suited for inspecting equipment, navigating tight spaces, and handling tasks in low light. 4 Lights, 7 Modes: 1,700-lumen flood, 800-lumen spot (205 m), 365 nm UV light, and green beam—freely combined. Exceedingly Durable Material: Made from Olight's O-aluminum, which is 1.73x as hard as standard 6061 aluminum alloy, it defies scratches, resists breaking, and shrugs off dents. The ArkBeat shows how you've used it: it pulses softly when the light is activated, changing color over time to reflect your journey with the flashlight. IPX7-Rated Waterproof, Dual Charging with Up to 14 Days of Runtime: The LED flashlight works with a magnetic USB charging cable or USB-C cables. When fully charged, it can provide up to 14 days of continuous use in moonlight mode. * Shipping Note: O-Fan Day custom engraving orders are shipping 2â€? business days later than usual.