5 year warranty
Casio are so sure of the performance of their LED projectors that they provide a 5 year or 10,000 hour use warranty as standard with every model. Whichever comes sooner, 10,000 hours of use or 5 years of ownership, you're covered up until then at no extra cost. Let's put those 10,000 hours into perspective. To reach 10,000 hours in less than 5 years, you'd need to be using your projector for 10 hours a day for 200 days a year.
Of course, your Casio LED projector isn't going to just conk out the second you hit 10,000 hours or 5 years. In fact, Casio estimates the effective lifetime of their LED projectors to be around 20,000 hours use, but only the first 10,000 hours or 5 years are guaranteed of course!