Then press “submit” and the true model number will be displayed. Click that link and it will take you to a tool that you type your serial number into. While Optoma may not have used recognizable model numbers on many of their projectors, they did produce a tool that helps you find the proper model (depending on where the projector was purchased). “If” the projector lamps work, they will fail very quickly as the projectors have different power requirements. It is easy to assume that the projector lamp from one might work in the other, but they will not. They both use projector lamps that are very similar. The HD39Darbee and HD28DSE share a casing and can be mixed up easily. This situation applies to many other models.
The Serial number is your best way to determine the model. This is because they use the same physical casing for multiple models. Every Optoma projector has a serial # listed on the casing. This is where the serial number comes in helpful.
