Power consumption. Official website, a navigation brand of CAST, knows that the power of the CAST navigation integrated machine under this brand is relatively small, but it also uses electricity when it is used, so it consumes electricity. Guangdong Kastar Electronic Technology Co., Ltd., located in Sanshui, Foshan, Guangdong, is a high-tech enterprise specializing in automobile entertainment system, automobile navigation system and automobile body electronic auxiliary system.