Products, $10 - $50, where Lamps by Wattage is 1 X 40W - 49W, and Ballast Lamp Type is 4-Pin

Keystone Rapid Start Electronic Ballast, 120-277V For (2) 26W CFL or Circline Fluorescent Lamps

SKU: KTEB-226-UV-RS-DW | Ordering Code: KTEB-226-UV-RS-DW

• 95-120 Ballast Factor
• 1/2 Lamps
• 120-277 Volts
• 1" High
• 5" Long
• 2.4" Wide
• More details

Keystone T5HO Electronic Ballast, 120-277V For (2) F54T5HO Lamps

SKU: KTEB-254HO-UV-PS | Ordering Code: KTEB-254HO-UV-PS

• 85-110 Ballast Factor
• 1/2 Lamps
• 120-277 Volts
• 1.2" High
• 9.5" Long
• 1.7" Wide
• More details

Fulham WorkHorse 5 Electronic Instant Start Ballast 120V, Long Case

SKU: WH5-120-L | Ordering Code: WH5-120-L  | UPC: 872180103754

• 0.62 - 1.17 Ballast Factor
• 128W
• 1/2/3/4 Lamps
• 120 Volts
• 1" High
• 8.5" Long
• 1.7" Wide
• More details

Fulham WorkHorse 6 Electronic Instant Start Ballast 120V, Long Case

SKU: WH6-120-L | Ordering Code: WH6-120-L  | UPC: 872180100821

• 0.72 - 0.91 Ballast Factor
• 35W
• 1/2/3/4 Lamps
• 120 Volts
• 1" High
• 8.5" Long
• 1.8" Wide
• More details