CTLAMP Replacement Lamp with Housing for EX31 / EX71 / EX51 / EB-S72 / EB-X72 / EB-S7 / EB-X7 / EB-W7 / EB-S82 / EB-S8 Type: Brand new compatible projector lamp with housing Compatible machine model: for EX31 / EX71 / EX51 / EB-S72 / EB-X72 / EB-S7 / EB-X7 / EB-W7 / EB-S82 / EB-S8 / EB-X8 / EB-W8 / EB-X8e / EH-TW450 / PowerLite HC 705HD PowerLite 79 / PowerLite S7 / PowerLite S8+ / PowerLite W7 / H309A / H309C / H310C / H311B / H311C / H312A / H312B / H312C / H327A / H327C / H328A / H328B / H328C / H331A / H331C Up to 2000 (normal) / 2500(economy) hours Life Guarantee: 30 days Refund & 120 days Warranty; Professional customer service support. Any other problems with the projector lamp, please contact us