The most consumable part of a projector is the projector lamp. When the projector doesnt work, at most cases it is due to the malfunction of the lamp. Actually, components in the projector other than lamp seldom go wrong. If you are satisfied with the brightness & image quality of the projector you are using, it is always good to replace the lamp. APOG can offer you a wide selection of compatible projector lamps that have the same quality as the original lamp under a more "reasonable" & fairer price. What APOG makes a difference as compared with the original lamp is its own production on the housing & connector which have no direct impact towards the performance of the complete lamp. Although they are relatively subtle, APOG is scrupulous to ensure that the combination of the housing/connection with the original bare lamp achieves the optimal performance.