Replacement lamp module for LP425Z and LP435Z projectors
270 watt metal halide
1,000 hours lamp life
Easy to replace
A quality InFocus product
Don't find yourself in the dark in the middle of your business presentation or family slide show.You'll always be prepared with the InFocus replacement lamp for your LP425Z or LP435Z projector.The 270-watt metal halide bulb lasts a long time, providing 1,000 hours of light.Saving you a trip to a service professional, this lamp is easy enough to change on your own.Did you know that the brightness of a projector lamp fades over time? For dazzling presentations, nothing beats the bright, clear image that a new lamp will produce. And if you're a traveling presenter, it's a good idea to always carry a spare lamp.InFocus offers the range of user-replaceable lamps. InFocus projector lamps are reliable, long-life and bright.but eventually you will need a new one!

To allow the arc to start easily, the arc tube is filled with argon gas. This allows the small arc to jump across the starting electrodes very easily. The small arc heats a drop of mercury that then vaporizes in the arc tube. When there is enough mercury gas, the main arc lights up. 0ver time (10,000 hours), the argon gas in the arc tube slowly dissipates, so the starting arc will not jump across the starting electrodes. With no small arc, the mercury for the main arc does not vaporize, and the lamp does not light up.If the small starting arc lights up but the lamp will not light up after a long time, it usually means that the electrodes at the front end of the arc tube have burned away. 0ften a mismatched ballast can cause this to happen.