Details: The Optoma ML550 is an incredibly small LED projector with the power and performance of a larger unit. Delivering an impressive 500 lumens and 10, 000: 1 contrast ratio, along with razor sharp focus and magnificent color accuracy, The ML550 will make your presentations stand out above the rest. Designed for traveling professionals, the Optoma ML550 is small in size, light in weight and strong in performance and reliability. Its LED light source is rated to last over 20, 000 hours, so there are no expensive bulbs to replace. It is built Optoma tough, so you know it will last for years to come.