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The best bike lights are a cycling essential, whether you're commuting through city streets or blazing trails after dark. While the law varies by state , most states require cyclists to use some kind of lights in low visibility. There's a wide array of lights to choose from, with options ranging from budget-friendly urban blinkers to car-headlight-style bright beasts. We tested dozens to help you choose the best lights for visibility, battery life, and budget, whatever your riding style.

Bike lights serve two purposes: to see and to be seen by other vehicles. Whether you're looking for a disruptive flash

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