A Smarter Alternative to Convention. The LX60ST features the BlueCore light engine technology to bring you optimized images and energy efficiency. Utilizing SmartEco Advanced Technology, you're able to reduce light source power consumption by up to 90%. It's an economic choice for any application. The BenQ LX60ST is the first in the world to be equipped BlueCore, a light engine that utilizes the unparalleled qualities of a laser light source to achieve optimized energy efficiency, projection performance and readiness. It also incorporates the BlueCore-enhanced SmartEco? Advanced technology to further reduce light source power consumption by up to 90% for a significantly lowered total cost of projector maintenance and ownership. Free of mercury, the BenQ LX60ST is a safer, smarter choice.