KLARUS guarantees its high lumen output torches against defects in material and workmanship. At the discretion of KLARUS, Any LED Torch, LED Flashlight, or high lumen output police torch products that are found to be defective under normal use within 2 years of the proof of purchase date will repaired or replaced without charge. The warranty does not cover damage caused by accident, unreasonable use or product alteration. Obviously, failure to follow the general maintenance directions could result in damage to an illumination tool that may not be covered by the KLARUS warranty. We ask that you take reasonable care with your equipment however do obviously understand the stresses and pressures our torches work under - because that's what they're designed to do - SWAT teams around the world rely on Klarus - you should too!