Hubbell BL-A400S8-WH High Intensity Discharge Ballasts

Hubbell BL-A400S8-WH High Intensity Discharge Ballasts regulate current and voltage to HID lamps, enabling reliable ignition and stable light output in commercial and industrial lighting systems. The BL-A400S8-WH model from Hubbell is designed to be paired with compatible HID luminaires, providing the essential electrical control required by high-intensity discharge lamps. In operation, the ballast handles the starting impulse and ongoing current regulation that help maintain consistent brightness and lamp life. This ballast is part of Hubbell’s HID product family, offering a durable solution for professional lighting installations where dependable ballast performance matters. Typical HID applications include large-area commercial and industrial lighting environments where consistent illumination and lamp longevity are priorities. Designed to be installed within the luminaire's ballast compartment and wired to the HID lamp and supply lines, the BL-A400S8-WH serves as the critical interface between power and light in professional fixtures. Hubbell's model naming—BL-A400S8-WH—identifies the ballast's place within the brand's HID product family.