This listing is for a USED Magnetek 1230‑93U high pressure sodium ballast. It is designed to operate 400‑watt HPS lamps and supports multiple input voltages including 120V, 208V, 240V, and 277V at 60 Hz. This unit is categorized as a magnetic lighting ballast and is commonly used in industrial, commercial, and outdoor lighting applications where reliable high‑intensity discharge lamp operation is required.

This listing is for a USED Philips HF‑R 236 TLD EII Electronic Ballast. It is designed for operating fluorescent T8 tubes with high‑frequency, energy‑efficient control. This unit is categorized as an electronic lighting ballast and includes capabilities such as HF‑Regulator II dimming functionality, compatibility with dual TLD lamps, and multi‑voltage operation as labeled.

This listing is for a NEW Advance 71A8473-001D. This unit supports 400W high pressure sodium lighting systems with multi-tap input voltage of 120/208/240/277VAC and includes a core & coil ballast, pre-wired ignitor, and capacitor for complete CWA lamp operation.