For quality-related issues, Sengled provides a 3-year warranty starting from the date of purchase. To initiate a warranty claim, the buyer must provide sufficient proof of purchase and document any troubleshooting done. The defective item's serial number and/or visible proof depicting the defect may be required, and in some cases, the item may need to be returned for quality inspection. Replacement items will be sent when available, and warranties on replacements follow the same timeframe as the original defective item.