OHP kinds of desktops with the specifications:   * Surface Size: 250 x 250 mm  * Lens 1 Element, F: 285mm  * Projection Distance 1, 5-3, 5m  * 360 Rotation  * Tilting Angle up to 60  * Lamp 24V, 300 W  * Brightness: 2, 500 Lumens  * 2 ( two) Lights  * Fringing Adjustment  * Safety Interlock Switch  * Cooling Fan  * Temperature Controller   Size: 505 x 450 x 310mm Power: AC 220V, 50Hz   Weight: 10, 4 Kg   OHP Bright Line provides a focus and a clear and bright lighting. With 2 ( two) lights, then you will be able to perform continuity presentations without being interrupted when a lamp overheated. Is the right choice with the ability and function of the prime engine and a very affordable price.   1 year product warranty including service and parts.