Acer X1129HP brings presentations to life and keeps your meetings focused with clarity and precision. The X1 series features 4,500 lumens. It is also equipped with Blue light Shield that mitigates the negative effects of blue light exposure. Acer LumiSense - Its high brightness and LumiSense feature enable presenting data with a clearer and sharper edge. 800 x 600 resolution. Brightness 4500 lumens. Brightness 4500cd/m2. Contrast ratio 20000:1. 1.07 billion colours. Suitable for screens up to 300in. 1 x 3 watt speaker. Power saving facility. Ceiling mountable. Connectivity:VGA, Composite, HDMI, PC audio, RGB. General information:Size H10.51, W22, D29.95cm. Weight 2.4kg. Manufacturer’s 2 year guarantee. EAN: 4710890000000.