They are big and bulky and require adequate space to set up and the biggest mistake of the projector lamp as it has limited opening times of life, and it is also expensive. Epson EB-1700 series ultra-portable 3LCD projectors are some of the slim and light projectors on the market available.And the best part is that the Epson E-TORL retail replacement lamps for all four new projector series for only $ 119 in Australia, they just make the cheapest bulbs available. The E-TORL lamps after 4000 hours at high power to 5000 hours in low power mode evaluated.