A basic high frequency ELT T8 (25mm diameter) Electronic Ballast for use with 1 x 18 Watt linear fluorescent tube. This single ballast is non-dimmable and works on universal voltage systems between 110 and 260 Volts. Ensuring optimised lamp operation it will provide instant start silent and flicker free illumination and automatic end of life cut out. Additional benefits are constant light output and energy efficient operation. Typical applications are supermarkets office stations corridors and the like.