USB rechargeable Rear Brake light with Smart Brake Sensing. Will automatically switch light intensity when stopping. It provides extra security when riding in traffic and with others. The light has a long battery life and features a 400mAh lithium battery. It can last up to 30 hours. Charges via a USB port on a computer or charger. The Cubelite II is made of aluminum, not plastic and is IPX5 waterproof. It also can be mounted on rear seat post, saddle or backpack with included mounting accessories.
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in Summary
Small Well Built, Brake light functions good. Wish it was larger in comparison with Serfas Thunderbolt
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