T8 Linear Fluorescent Ballasts, $20 - $30, where Lamps by Wattage is 4 x 20W - 29W, and Number of Lamps is 4

Keystone Instant Start Electronic Ballast, 120-277V For (4) F32T8 Lamps

SKU: KTEB-432-UV-IS-L-P | Ordering Code: KTEB-432-UV-IS-L-P

• 75-90 Ballast Factor
• 3/4 Lamps
• 120/277 Volts
• 1.2" High
• 9.5" Long
• 1.4" Wide
• More details

Keystone Instant Start Electronic Ballast, 120-277V For (4) F32T8 Lamps

SKU: KTEB-432-UV-IS-N-P | Ordering Code: KTEB-432-UV-IS-N-P

• 88-96 Ballast Factor
• 3/4 Lamps
• 120/277 Volts
• 1.1" High
• 9.5" Long
• 1.3" Wide
• More details

Philips Advance Electronic Ballast 120V to 277V for (3 or 4) F32T8

SKU: ICN4P32N | Ordering Code: ICN4P32N35I  | UPC: 781087091517

• 88-104% Ballast Factor
• 3/4 Lamps
• 120-277 Volts
• 1.2" High
• 9.5" Long
• 1.7" Wide
• More details