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Serfas warrants to the original purchaser that the product is free of defects in material, construction, and/or workmanship for the lifetime of the product.
Battery Warranty – One Year Coverage
Serfas batteries are covered by a 1 year warranty from the original date of purchase.
USM-350 E-Lume 350 Lumen Headlight
UTM-30 Cosmo 30 Lumen Tail Light