Accumulators, electric; Computer keyboards; Electric locks; Inverters; Power switches; Solar-powered rechargeable batteries; Supercapacitors for energy storage; Surveying instruments; Telecommunications equipment, namely, fiber-optic transceivers, fiber optic repeaters, converters and optimizers, wave division multiplexers, free-space optics transmission systems, switches including Ethernet switches and routers, fiber-to-the-home and ethernet-over-VDSL access aggregators, terminators and repe...