BenQ HT2550 User Manual - Page 6

17. Do not place liquids near or on the projector. Liquids spilled into the projector may cause it to fail. If the projector does become wet, disconnect it from the power supply's power outlet and call BenQ to have the projector serviced. Risk Group 2 1. According to the classification of photobiological safety of lamps and lamp systems, this product is Risk Group 2, IEC 62471-5:2015. 2. Possibly hazardous optical radiation emitted from this product. 3. Do not stare at operating lamp. May be harmful to the eyes. 4. As with any bright source, do not stare into the direct beam. 18. This product is capable of displaying inverted images for ceiling mount installation. 19. This apparatus must be earthed. 20. Do not place this projector in any of the following environments. Hg - Lamp contains mercury. Manage in accordance with local disposal laws. See www.lamprecycle.org. - Space that is poorly ventilated or confined. Allow at least 50 cm clearance from walls and free flow of air around the projector. - Locations where temperatures may become excessively high, such as the inside of a car with all windows rolled up. - Locations where excessive humidity, dust, or cigarette smoke may contaminate optical components, shorten the projector's life span and darken the image. - Locations near fire alarms - Locations with an ambient temperature above 40°C / 104°F - Locations where the altitudes are higher than 3000 m (10000 feet). 3000 m (10000 feet) 0 m (0 feet) 6 Important safety instructions