ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR Samsung SP-M225, 2200 ANSI lumens, LCD, XGA (1024x768), 500:1, 1016 - 7620 mm (40 - 300"), 1 - 14 m Samsung SP-M225. Projector brightness: 2200 ANSI lumens, Projection technology: LCD, Projector native resolution: XGA (1024x768). Light source type: Lamp, Service life of light source: 5000 h, Lamp type: UHP. Focal length range: 1.48 - 1.717 mm, Zoom ratio: 1.2:1. Analog signal format system: NTSC, PAL, SECAM. Serial interface type: RS-232