CPW

Electronic advertisement boards featuring a neon lamp; electrical switches; electric transformers; rectifiers; electric connectors; lighting ballasts; USB (universal serial bus) hardware and downloadable USB (universal serial bus) operating software; surge protectors; internal cooling fans for computers; voltage stabilizers; electrical ducts; DC/AC power converters; electrical power supplies; uninterruptible electrical power supplies; chargers for batteries; power controllers; time recording apparatus; electrical storage batteries; electrical control panels; electric converters