11 [ Lighting apparatus and installations, namely, power plants, arc lamps, electric lighting fixtures, fiber optic lighting fixtures used in conjunction with electrical illuminators, lamps, fluorescent lamps, light diffusers, roadlights and lamps, all for buildings and construction works; heating apparatus, namely, electric radiators for heating buildings, heat accumulators, hot water tanks, industrial dryers for heating and dehumidifying, and water heaters for buildings; heat exchangers; heat pumps; electric, gas and solid fuel burning stoves; steam generating apparatus, namely, steam boilers, steam accumulators, steam generators; electrical water pumps for swimming pools, saunas, baths, spas and whirlpools; refrigerating apparatus and installations, namely, refrigerators, desalination units, all for buildings and construction works; drying apparatus and installations, namely, dryers for the removal of water vapor from compressed air and gases; dehumidifiers, all for buildings and construction works; air conditioners; conduits and pipes for water supply use; bath fittings, namely, shower and tub control valves, drains, faucet filters, spouts; shower enclosures; water closets; bath tubs ]