Maintain installed Optoma projection systems with a replacement lamp built for the EW675UT, EW675UTI, EW675UTIS, EX665UT, EX665UTI, and EX665UTIS families, along with additional compatible NEC and Optoma models listed by the manufacturer. This BTI part gives facilities and AV teams a practical way to return a projector to service without the expense of a full replacement. For organizations that depend on classroom, huddle-room, or training-space projection, lamp replacement is often the fastest route back to normal operations. A verified replacement part reduces downtime, simplifies spare-parts planning, and helps preserve the original projector investment. This lamp is especially useful where short-throw or interactive projection systems are deployed and image quality must remain consistent for daily use. Instead of reworking the room around a new projector, teams can keep the existing installation intact and refresh the light source as needed. BTI’s replacement approach is built for procurement teams that value compatibility and predictable maintenance. It supports a lower total cost of ownership by extending the life of the projector platform already in place, while keeping service decisions straightforward.