Apparatus and devices for lighting, namely, stage lighting apparatus and devices, in the nature of flood light illumination, par illumination, strip lights, spotlights, ERS reflector spotlights, fresnel lanterns, movement spots, projectors and beam projectors with moving heads and fixtures for stage lighting; filters for lighting apparatus and instruments, namely, color filters for use with lighting apparatus and devices, and for use with apparatus and instruments for effect lighting, namely, those with moving heads and fixtures, roller scanners, effect lighting devices with stroboscope illumination; LED (light emitting diode) luminaires, LED lighting appliances, namely, LED lighting fixtures; HID (high-intensity discharge) luminaires, HID lighting appliances, namely, HID lighting fixtures; halogen luminaires, halogen lighting appliances, namely, halogen lighting fixtures; Laser light projectors, namely, diffusion disk projectors for illumination purposes; fluorescent luminaires; fiber optic illumination as light sources for fiber optical light conductors; laser-based lighting appliances, namely, laser light projectors; ventilation apparatus, namely, ventilating fans and ventilators in connection with smoke generators and generators for the production of artificial fog