Your LYW product is warranted free of defects in materials and workmanship with the LYW Limited Lifetime Warranty. LYW flashlights enjoy a worldwide warranty service. Within 15 days of purchase, any defective lights will be offered free replacement (proof of purchase required) by LYW distributors unconditionally; In the event of a defect under this warranty, we will, at our option, repair or replace the product. This warranty does not cover damages caused by misuse or improper handling, claims exceeding 18 months. Also, this warranty is null and void if modification or maintenance is provided by someone other than LYW.