The basic ballast is the open core and coil which is most often used as a component within a lighting luminaire. The core and coil also forms the nucleus of Philips Advance five other ballast configurations.

Advance High Pressure Sodium Ballast Kit, Core/Coil HID Magnetic, High Pressure Sodium Lamp, 250 W Lamp, 295 W Wattage, 120/208/240/277 VAC, 2.5/1.47/1.25/1.09 A, 60 Hz Frequency, Pulse Start, -40 deg F Minimum Starting, Power Factor: 1, No Dimmable, 1 Lamp, Thermal Protection: Class P, Ballast Factor: 1, ANSI S50 Ballast Grade, 4.75 in L x 3.82 in W x 4.25 in H Dimensions

• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Advance_71A8271001D_Specification_Sheet.pdf https://www.iesbuy.com//ASSETS/DOCUMENTS/ITEMS/EN/https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Advance_71A8271001D_Specification_Sheet.pdf

• 0.5 mm L wire strip
• Stranded wire
• CWA type circuit
• 4 x 4 in core
• 12 in L wire by color
• Magnetic HID ballast
• 105 deg C igniter temperature
• 35 Mfd, 240 VAC, 105 deg C capacitor
• 1.65 in Dia x 3.7 in capacitor
• 1.53/0.95/0.77/0.63 A (open circuit), 1.61/0.89/0.8/0.68 A (starting), 1.16 to 1.74/0.64 to 0.96/0.56 to 0.85/0.49 to 0.74 A (short circuit), 3.65 to 4.45 A secondary short circuit current
• Constant wattage deviation within trapezoid
• Remote wiring configuration allowed
• 2 ft ballast lamp distance remote wiring