We source projector lamps directly from the world's leading lighting manufacturers. These are the same companies who supply the leading projector brands! Projector manufacturers leave the lighting up to the lighting pros, and so should you! The recommended original replacement for the following Epson projectors: EB-4950WU, EB-1970W, V11H546020, Powerlite 4650, Powerlite 1985WU, Powerlite 4770W, CB-4950WU, Powerlite 4855WU, Powerlite 1975W, EB-4850WU, V11H544020, V11H543120, EB-4550, EB-4650, EB-4750W, Powerlite 4750W, 1440HC, Powerlite-4650, Powerlite-1985WU, Powerlite-4770W, , Powerlite-4855WU, Powerlite-1975W, Powerlite-4750W