Is it ok to use external power supply for PointWrite-PT12? If yes, what is the spec. of the power adaptor?
It is ok to use the adapter 5V/2A for PointWrite-PT12. If the spec is 2.4A, it is also fine. Nevertheless, please make sure not to keep PointWrite-PT12 connecting with power adapter if the projector had been turned off. Otherwise, it may damage the laser module of PointWrite-PT12.