Here is our ordering logic matrix sheet from our 2012 catalog. This PDF breaks down how you can choose what fixture, lens type, finish, wattage, & any additional available options for your fixture like CFL kelvin color temperature, 277 Volt Ballast, name brand bulbs and ballasts for Philips Advance, Osram Sylvania, and Universal Lighting Technology, [...]

All Incon Lighting fixtures with 13 Watt GX23 (i) that had the 277 (277 Volt Ballast) option in the printed 2012 catalog will no longer have it soon. We currenly have a few of the ballasts in stock however we do not plan to continue to offer it. This includes the following wattages: 13 – [...]