Standard-BL Fluorescent 120/277V Electronic Emergency Ballast For (1) 2 Foot 4 Foot T12/T8 20 40W Circline 13 26W 4-Pin Compact Fluorescent Bulb With Time Delay (BAL500TD) nostock With a 4000K color temperature

With a 4000K color temperature and Mogul E39 base

Philips 379008 FB32T8/TL835/6 ALTO 32W 22 7/16 Inch 3500K 6 Inch Spaced Medium Bi-Pin G13 Base T8 U-Bend Fluorescent Bulb (927860083502)

Type: Keyless porcelain

Standard-BL LEDR-2 Adjustable Optics LED Emergency Unit (LEDR-2)

Standard-BL Fluorescent 120/277V Electronic Emergency Ballast For (1) 2 Foot 4 Foot T12/T8 20 40W Circline 13 26W 4-Pin Compact Fluorescent Bulb With Time Delay (BAL500TD) nostock With a 4000K color temperatureStandard BL Fluorescent 120 277V Electronic Emergency Ballast For (1) 2 Foot 4 Foot T12 T8 20 40W Circline 13 26W 4 Pin Compact Fluorescent Bulb With Time Delay (BAL500TD)