Review on ZW9D12W H145 Quality Premium Compatible Guaranteed by David Sharma

There is not much to say about the UV sterilizer lamp; Either it fits and lights up or it doesn't. It fits in my sterilizer and is well lit. There is a one year "guarantee" but I would like to point out that none of these sterilization lamps will work effectively for more than a year. With continuous use, the UV sterilizer lamp will become weaker the longer it is burned, so by the end of the season all of these lamps may be only half as effective as they were at the beginning. You usually don't notice this until the algae starts to build up early in the next season. If this bulb fits your sterilizer, you should replace it at the beginning of each pond season, whether or not it stays lit afterward. . . This means that if you plan to keep the sterilizer model for a long time, you will have to buy several of them.