Technically, a projector can run for 24 hours straight, but it is not recommended to do so continuously. Most projectors are designed to be used for presentations, movies, or other activities that have a limited duration, and they are not intended for continuous operation.
Running a projector for an extended period can cause the bulb to overheat, which may damage the projector and result in reduced bulb life. In addition, if the projector is not properly ventilated or if the air filter becomes clogged, it can also cause the projector to overheat and damage its internal components.
If you need to use a projector for an extended period, it’s best to consult the manufacturer’s guidelines for usage and recommended operating hours. It’s also a good idea to give the projector a break every few hours to allow it to cool down and avoid overheating.