The modular design of the new Tear Drop LED Series is intended to utilize several of the key components on the existing HID version. Specifically, the permanent, glass optical lens is fully compatible and thus a reliably engineered conversion can be obtained by simply replacing the "heart" of the housing only. This is a terrific way to save on replacement material costs and be truly sustainable with a conversion to LED. Unlike third party retrofit kits, you get the assurance that the new version of the luminaire is supported by a full regiment of testing for reliability, long component life and regulatory certification.