The HID to LED LEDSS lamps by RemPhos Technologies offers an economical alternative to upgrade to long lasting LED lighting, while retaining the original fixture. The LEDSS series replaces HID high intensity discharge , HPS high pressure sodium , and MH metal halide type lamps. Light is emitted 360 degrees as well as the top so that the original fixture will be illuminated perfectly and uniformly. Extremely efficient at 110LPW, the LEDSS comes with either E26 Edison or E39 Mogul bases. UL Listed for use indoor or outdoor, and an IP64 rating. Multiple lumen output and CCTs are available.