One characteristic of lamps is that their brightness wanes throughout their lifetime. However, the ECO mode can cause the projector lamp to flicker-you can avoid this by launching new lamps in standard mode first (for up to 50 hours) before turning on ECO mode. These projector lamps last about 1,500 to 2,000 hours when used in normal mode but can last 3,000 to 5000 hours in ECO or power-saving mode. Lamp projectors use metal halide or UHP mercury vapor lamps (bulbs), which burn out quickly and must be replaced multiple times over the projector’s lifetime. Lamp-free projectors include LED and Laser projectors. ![]() On the other hand, lamp-free projectors use modern, solid-state light sources, which sets them apart from regular DLP and LCD projectors. They include DLP and LCD projectors with replaceable, traditional lamps. Lamp projectors are older technology but are still widely used because of their affordability. Projectors are grouped into two based on their light source: lamp and lamp-free projectors. We’ll explore each of them in this section.
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