Another consideration in each size bracket is the light bulb's brightness projector, resolution and type of lens used. Most of the time your choice will depend on the type of image or video projector you need to display - clearly if you're presenting a very detailed picture or complex spreadsheets, you'll need a higher resolution than if you create a simple PowerPoint presentation. A bright projector bulbs may be required if the presentation space is not too dark or the projector is quite far from the screen. Whatever you need for your projector, Approved Index will be in accordance with individual needs to find the right company for your business.