CTLAMP 5J.J7L05.001 LCD Projector Lamp Replacement 5J.J7L05.001 with Housing Compatible with BenQ HT1075 HT1085ST W1070 W1080ST Lamp Type: Replacement Lamp with Housing Part number: 5J.J7L05.001 Model number and rate power: compatible with BenQ HT1075 HT1085ST W1070 W1080ST 240 Watts Lamp life: 2500 (normal) / 3000 (economy) hours Guarantee: 30 days Refund & 150 days Warranty; Professional customer service support. Any other problems with the projector lamp, please contact us