Review: Wowtac A2S, a budget right-angle headlamp with USB battery

Wowtac is a budget brand affiliated with Thrunite offering a line of 18650-powered flashlights, with an included 18650 battery that has a direct USB charging port, starting at $20. The A2S is the right-angle/headlamp version with higher output and a larger battery capacity for $30. This is probably the best value headlamp on the market and also makes a good handheld.

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