I purchased this bulb in October 2020 to replace a burned out bulb in my water purification system. The manufacturer states that the guarantee is 1 year. It exploded today in May 2021, just 7 months later. I have tried unsuccessfully to contact Amazon and the seller of this product but have not been able to find a way to let them know. I find it unbelievable. This is shadow business. Unfortunately there is no other place to get this pear. And I can't drink water without a system.
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