Air-conditioning, air cooling and ventilation apparatus and instruments; Ceiling lights; Electric lighting fixtures; Electric track lighting units; Heat sinks for use in heating, cooling and ventilating apparatus; Heating and cooling panels used for indoor heating and cooling purposes; Heating panels used for indoor heating purposes; Heating systems composed primarily of tubes, pipes and manifolds through which warm or high temperature water circulates; Heating systems composed primarily of tubes, pipes and pre-assembled manifolds through which cold or low temperature water circulates; Indoor radiant heating systems; LED (light emitting diode) lighting fixtures; LED (light emitting diodes) lighting fixtures for use in display, commercial, industrial, residential, and architectural accent lighting applications; LED and HID light fixtures; LED light assemblies for street lights, signs, commercial lighting, automobiles, buildings, and other architectural uses; LED lighting fixtures for indoor and outdoor lighting applications; LED lighting systems, namely, LED modules, power supplies, and wiring; Light diffusers; Light reflectors; Lighting apparatus, namely, lighting installations; Lighting fixtures; Lighting fixtures for use in parking lots and walkways; Lighting fixtures that integrate natural daylight and fluorescent lighting into the fixture; Lighting fixtures with motion detection; Lights for illuminating stairs, doors and other portions of buildings; Optical lens covers that improve light output and uniformity and protect the LED, sold as a feature of an LED lighting system; Solar energy based cooling apparatus; Solar light fixtures, namely, indoor and outdoor solar powered lighting units and fixtures; Solar-powered cooling units