Keep legacy Epson projection systems available with a replacement lamp built for the PowerLite 54C and 74C. The Battery Technology V13H010L27-BTI is a practical service part for teams that need to maintain classroom, meeting room, and training-room displays without disrupting the rest of the AV stack. For infrastructure and procurement teams, lamp replacement is often the most efficient way to extend the useful life of an installed projector fleet. This part helps avoid the cost and scheduling burden of replacing an entire projector when the chassis, mounting, and cabling are still serviceable. It also supports planned maintenance, which is especially valuable in environments where presentation uptime matters. Using the correct replacement lamp reduces compatibility risk and keeps support workflows simple. The result is a cleaner maintenance cycle, better control over spare parts, and a more predictable path for keeping older Epson systems in operation. For organizations managing multiple rooms or distributed sites, that predictability can translate into lower downtime and less unplanned spend.