Notice: Please refer to the projector user manual when replacing the lamp. Normally, the projector user manual is available on manufacturer's website. The item is able to fully replace the BenQ 5J. JG 705.001 (Lamp part number), and works with projector models listed below. HT1070AMH530FHDMH534MH535MH5353AMH535AMH535FHDMS508MS521HMS524AEMS531MS531PMS535MS535AMS535PMW526AEMW533MW535MW535AMX508MX532MX532PMX535MX535PTH534TH535TW533TW535W1050W1050SWe suggest you check either original lamp part number or projector model before ordering it. Changing a projector lamp doesn't have to be complex, in fact it's easier than you imagine. When doing it, you only need a suitable screwdriver (Not included) to loosen then tighten a few screws. Please reset the lamp timer after replacing the projector's lamp (Refer to user manual). To ensure the projector works better, please perform a dust cleaning for the air filter (For some projector brands only) after replacing the lamp. If the air filter has been used for a long time, consider replacing it too.