High quality with bright and long lifespan: Uses genuine lamps. This is a cost-effective replacement lamp that maintains the same brightness and life as the original manufacturer product! Projector lamps come with original manufacturer and other generic products, but the original manufacturer product is very expensive. Other generic products are lower priced for genuine products, but the brightness is 70%-90% of the original lamp, and the life is about 1000 hours - 1400 hours (2/3 of the original lamp). Our products use genuine lamps, and only the housing (*case surroundings) are generic products, and the lifespan is longer than 2,000 hours (depending on usage conditions). The brightness is the same as the original manufacturer product. This lamp will last you for years to come. Instead of constantly using low light lamps, we recommend our high quality original lamps. In addition, our lamps have a 150 day long warranty. If it breaks under normal use, we will replace it. Please use it with confidence. We strive to make a pleasant transaction so that we would like you did at the end. Thank you!