What is in this article?:
- Benefits of a Metal-Halide System
- SIDEBAR 1: Next Generation Energy Concerns
- SIDEBAR 2: MH Improvements on the Horizon
- SIDEBAR 3: Benefits of Ceramic Metal-Halide (CMH) Lamps
This high luminance point source provides excellent optical efficiency in a variety of lamp/ballast configurations
SIDEBAR 1: Next Generation Energy Concerns
Many commercial building energy codes have energy savings rules for outdoor lighting. For example, ASHRAE/IES 90.1 2010, the IECC energy-efficient code, and some model ordinances call for outdoor HID ballasts to have some type of bi-level light output and/or dimming capabilities. Additionally, California Title 20 product regulations require 150W to 500W MH fixtures to have a specific level of ballast or fixture efficiency or to have automatic energy-saving lighting controls.
For these reasons, bi-level control systems for area or street lighting are finding increasing application. Housed in the top surface of a luminaire, a node can communicate via radio, satellite, and/or cellular system to a central operating center, delivering control and status messages to a web page. This allows an operator to control, adjust, monitor, and receive maintenance messages from each luminaire on the system.