This Keystone KTEB-240-1-TP /E ballast is designed to power two T8 fluorescent lamps with a total wattage of 40W and a voltage of 120V. Made in the United States, this ballast is suitable for use in various industrial and commercial settings. It is compatible with units of the Keystone brand and comes in a quantity of one. The ballast is perfect for lighting setups in facilities that require maintenance and safety measures. It falls under the category of Lighting Ballasts Starters and can be a valuable addition to your inventory. Purchase this Keystone KTEB-240-1-TP /E ballast and power your T8 fluorescent lamps with ease. These have been used and uninstalled by a professional because of a change order. Please see pictures for better detail and measurements.