Advance Electronic Ballast For (1-2) 24-42W Lamps (1) 57W Or 70W Compact Fluorescents With 2G11 G24Q GX24Q GR10Q 2G11/RS Bases FC9T5 FC12T5 Lamps Run At 120-277V (913700508491) backorder1428 Light Sensor (Photocell) included for

Light Sensor (Photocell) included for Ambient Light Hold-Off feature

Philips 226720 FB31T8/TL835/ALTO 15/1 31W 22-5/8 Inch 3500K 1-5/8 Inch Spaced T8 U-Bend Medium Bi-Pin Base Bulb (927861283502)

Sylvania FBO31/841 31W 22

No-Neutral wire required

Instant Start Electronic Fluorescent WorkHorse Ballast for 1 28W Maximum Lamp Operated at 120V/* */

Advance Electronic Ballast For (1-2) 24-42W Lamps (1) 57W Or 70W Compact Fluorescents With 2G11 G24Q GX24Q GR10Q 2G11/RS Bases FC9T5 FC12T5 Lamps Run At 120-277V (913700508491) backorder1428 Light Sensor (Photocell) included forAdvance Electronic Compact Fluorescent Ballast For (1 2) 24 42W Lamps (1) 57W Or 70W Compact Fluorescents With 2G11 G24Q GX24Q GR10Q 2G11 RS Bases FC9T5 FC12T5 Lamps Run At 120 277V (913700508491)