Halogen and fluorescent bulbs: Light Bulbs, fluorescent light bulbs, halogen bulbs, compact fluorescent bulbs, full spectrum bulbs, lamps, ballasts and lighting fixtures. 1-lamp 120V dimming electronic:CODE SYL-49671Check Latest Price1-lamp 120V dimming electronic ballast for 54W T5 HO lamp, DL and Circline lamps QT1X54/120PHO-DIM ... 1-lamp 277V dimming electronic:CODE SYL-49672 1-lamp 277V dimming electronic:CODE SYL-49672Check Latest Price1-lamp 277V dimming electronic ballast for 54W T5 HO lamp, DL and Circline lamps QT1X54/277PHO-DIM ... 2-lamp 120V dimming electronic:CODE SYL-49673 2-lamp 120V dimming electronic:CODE SYL-49673Check Latest Price2-lamp 120V dimming electronic ballast for 54W T5 HO lamp, DL and Circline lamps QT2X54/120PHO-DIM ... 2-lamp 277V dimming electronic:CODE SYL-49674 2-lamp 277V dimming electronic:CODE SYL-49674Check Latest Price2-lamp 277V dimming electronic ballast for 54W T5 HO lamp, DL and Circline lamps QT2X54/277PHO-DIM ... 1-lamp 120V <10%THD 100-5% dim:CODE SYL-50700Check Latest Price1-lamp 120V ... 1-lamp 120V <10%THD 100-5% dim:CODE SYL-50701Check Latest Price1-lamp 120V ... 1-lamp 277V <10%THD 100-5% dim:CODE SYL-50710Check Latest Price1-lamp 277V ... 1-lamp 277V <10%THD 100-5% dim:CODE SYL-50711Check Latest Price1-lamp 277V ... 2-lamp 120V <10%THD 100-5% dim:CODE SYL-50720Check Latest Price2-lamp 120V ... 2-lamp 120V <10%THD 100-5% dim:CODE SYL-50721Check Latest Price2-lamp 120V ... 2-lamp 277V <10%THD 100-5% dim:CODE SYL-50730Check Latest Price2-lamp 277V ... 2-lamp 277V <10%THD 100-5% dim:CODE SYL-50731Check Latest Price2-lamp 277V ... 2-lamp 277V <10%THD 100-5% dim:CODE SYL-50741Check Latest Price2-lamp 277V ...