XJ-A257 3000 lumens2x optical zoomDynamic brightness controlMer XJ-A252 3000 lumens2x optical zoomDynamic brightness controlMer XJ-A247 2500 lumens2x optical zoomDynamic brightness controlMer XJ-A242 2500 lumens2x optical zoomDynamic brightness controlMer XJ-A147 2500 lumens2x optical zoomUSB/WLAN/internal memoryMer XJ-A142 2500 lumens2x optical zoomDynamic brightness controlMer