Unconditional guarantee: if for any reason you are not completely satisfied by your purchase, simply return the product with proof of purchase for a replacement or refund, whichever you prefer. We welcome any comments or questions you may have. When writing, please include the product code found below. Limited warranty: 7 years based on normal household usage in accordance with package and bulb directions. NOTE: Reliable operating temperature range 0f/-18c to 100f/40c. Color temperature is 3000k. Uses only 13 watts. Life: 8000 hours.