Wurkkos WK03 1800-lm SST40 Rechargeable EDC Flashlight w/ 18650 Battery $10.45 + Free S&H on $29+

by WK

Compact 55g aluminum flashlight with high-power LED and automatic voltage protection.

The WK03 is a durable and lightweight flashlight built from 6061-grade aluminum alloy for robust impact resistance. Weighing just 55g without battery, it measures 101.5mm in length with a 24.7mm head diameter, making it compact and portable. It features a high-power Luminus SST40 LED for bright illumination and uses an 18650 Li-ion battery with 2.7V–4.2V working voltage. Built-in voltage protection automatically shuts off the flashlight if voltage exceeds safe limits, protecting both the device and battery.