Size: N15NP15LP Replacement Lamp- For M271X M300X M260X M311X M230X M260XS M271W M300XGNote- Turn off the power before replacing the lamp. - Clean the fan and surrounding dust before replacing the lamp to avoid abnormal    temperature and cause the projector to malfunction. - After replacing the new lamp, clear the lamp usage time. - After turning off the projector, wait for the cooling to complete before   unplugging the power cord. - Avoid other objects blocking the projector, which will cause abnormal heat   dissipation, so as not to affect the life of the lamp and other faults. bulb- Perfect compatibility and stability- Continuous improvement only to provide higher quality bulbs- Adhere to the pursuit of high quality products's services- 30 days refund & 200 days replacement- Provide technical support for projector bulbs in the first time- Adhere to the pursuit of high quality services