Established in 1999, Big Lake Supply is engaged in the wholesale distribution of electrical equipment. The company provides shipping and customer support services. Big Lake Supply owns and operates TransferSwitch4Less.com, which markets automatic transfer switches. TransferSwitch4Less.com serves commercial, residential and industrial customers. Big Lake Supply also operates submetering4less.com, which sells submeter systems. Submetering4less.com offers products from various manufacturers, including E-MON and IMS. Big Lake Supply provides a variety of generator parts, control panels, voltage regulators and battery chargers through Generatorparts4less.com. The parent company additionally maintains Lightingcontrols4less.com, which market a variety of lighting control systems and feeder disconnect and remote control switches.