QUJXU 331-2839/317-1135/725-10134/725-10284 Replacement Lamp Special Upgraded Design Bare Bulb Inside with Housing for Dell 4220 4320 4210X 4310WX 4610X Projector Lamp

QUJXU PROJECTOR LAMPPerfect compatibility and stabilityContinuous improvement only to provide higher quality bulbsAdhere to the pursuit of high quality productsInstallation: 1. Turn off the projector and unplug the power cord. 2. Let the projector cool down for at least one hour, and let the lamp cool down sufficiently. 3. Loosen the lamp cover screw. Then slide the lamp cover off. 4. Loosen the two screws holding the lamp in place. 5. Hold the lamp as and pull it straight out. NoteTurn 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. QUJXU'S services30 days refund & 200 days replacementProvide technical support for projector bulbs in the first timeAdhere to the pursuit of high quality services