Overhead projectors (OHPs) come in a variety of makes but all have similar features. They contain two bulbs. At any time, one of these bulbs can project light through the fresnel, which diffuses the light, through the glass stage, through a lens in the projector head, and then onmore...
ANCHOR Overhead projector ANOHP250S2G, Brightness 1800-2000 Lumens, Fixed Projector Lens, Lamp: 24V/250W, Lamp Type: EHJ, Steel metal case, High efficiency and low energy consumption, Low-noise cooling system, Reliable and convenient folded spring pole and self-lock device, Supermore...
