Aketek&reg; LED Protable Projector HD PC AV VGA USB HDMI(Black) 50Lum Brightness ,Aspect Ratio:16:9 / 4:3 with 20000 hours life. Multi-function interface:HDMI, VGA, AV,SD, USB input Low power consumption, power saving and environmental, small and light and easy to carry Maximum Resolution:1080P for display size:20-60Inches The LED lamp works for over 20,000 hours and provide superb pictures