Maintain projection availability with a replacement lamp for Acer PD125 and PD125D, plus HP MP3220 and MP3222. Battery Technology’s L1720A-BTI gives support teams a practical way to service installed projectors without changing the platform or reworking the room. For organizations managing mixed AV fleets, the value is straightforward: replace the lamp, keep the projector, and protect prior infrastructure spend. That matters in conference rooms, classrooms, and shared spaces where a failed lamp can interrupt meetings, instruction, or client presentations. This part is suited to environments that need a clear, compatible service component rather than a generic substitute. By matching the listed projector models, it supports faster maintenance decisions and cleaner spare-parts planning. When uptime matters more than hardware refresh cycles, a verified replacement lamp is the right fix.