HDL was established in 1985, specialized in developing,manufacturing and distributing of Home/building automation and stage lighting control system, With its headquarter Located in Guangzhou China, HDL has business and partners in every continent .The company has strong ability for R&D, manufacturing, installating, debugging, and technical training, by undertaking missions of Height, Dedicated, Leading, HDL is one of the most famous manufacturers and integrators in national film & TV stage as well as intelligent building control field. Specially HDL keep excellent technical development cooperation with partners from Germany , Norway, UAE, Singapore, Iran, Russia and Italy etc, that speeds up HDL to being a leading and international brand, until now, HDL applied technical patents successfully for more than 60 products.

HDL is dedicated to R&D and production for each product, to each sales and service opportunity, therefore had been accepted by many domestic & oversea organizations and associations. In the early 2003, HDL became a member of American ESTA, famous as an international observer in ACN network standards, and also as member of KNX/EIB ARTNET and DALI. In 2006, HDL has also undertaken the drafting and preparation work of the Standard of DMX512-A Data Transfer Protocol under the Ministry of Culture.