The Optoma BL-FP280I Projector Lamp is an original replacement part designed for use with a number of Optoma projector models include the Optoma RW775UTi, Optoma W307UST, Optoma X307USTi and the Optoma X307SUT. The bulb inside is almost entirely enclosed in its casing, which is kept securely in place with metal screws. When it comes to installation, the module itself slots conveniently and easily into place on its corresponding projector model.