Guide
How much electricity does a projector use?
Projector electricity consumption depends on brightness, image mode, lamp or LED system, and how many hours the setup runs per week. The useful question is the real viewing cost, not only the wattage on the box.
Short answer
A projector can be relatively modest or surprisingly expensive depending on the model and usage pattern. The best check is to compare the projector calculator against a TV setup with the same viewing hours.