Setting the standards in superior energy efficiency, Keystone's high efficiency T8 ballasts earned the prestigious NEMA Premium designation by exceeding the standards set forth by the Consortium for Energy Efficiency (CEE). By saving over 5% in energy over standard T8 lamp and ballast combinations, Keystone's NEMA Premium T8 ballasts automatically qualify for rebates and incentives through utilities, municipalities, and government programs. They are an excellent source to help meet green or sustainable lighting objectives and for achieving LEED, ASHRAE, or other energy certifications.

This Keystone Ballast KTEB-232-UV-IS-L-P, 120/277 volt, 50/60 Hz ballast uses Instant Start Reduced Light Output operation and has a 0 degree F temperature starting capability. These electronic fluorescent ballasts have a Class A sound rating. They utilize parallel circuitry to keep the remaining lamps lit if one should go out. This Keystone ballast is capable of operating (1) F40T8 or (1) or (2) F32T8 (25W, 28W, 30W or 32W), F25T8 or F17T8 lamps. The input voltage is 120/277. They are thermally protected and integrate active power factor correction. 

Utilizing a team of the most highly regarded engineers in the industry, Keystone develops their products with a focus on lasting quality, energy efficiency, and reliability. Products do not come to market until they have passed rigorous quality assurance procedures, with zero tolerance for "less than ideal" performance. Customers have come to depend on Keystone as their preferred source for outstanding ballast products. These electronic fluorescent ballasts carry a 5 year warranty.

Specification Sheet