The Philips Advance IMH-100-D-BLS is an electronic metal halide ballast designed for 100W HID-MH light sources. Manufactured by Advance Transformer Co. in Mexico, this ballast operates on a voltage range of 120-277V. The model is suitable for use in facility lighting and maintenance applications within various business and industrial settings. The reliable performance and efficiency of this ballast make it a dependable choice for powering metal halide lighting systems.