PosiDim provides smooth, flicker-free dimming control of LED installations using high-frequency PWM (1250Hz). Requiring no additional LED driver to drive up to 2A of single colour LED light fittings, such as Digilin’s range of linear LED systems, PosiDim is a quality, simple dimming solution.

The mechanism is easily expandable with Digilin's range of PWM repeaters, enabling it to control large runs of linear LED systems and even constant current fixtures. Fitting directly into any Series 30 switch plate, PosiDim can easily be retrofit to existing installations. It operates on a non-linear dimming curve, which provides much greater accuracy in setting lower light levels.

The device runs at 1250Hz to conform with IEEE1789 standards on flicker, which is critical to prevent the negative health impacts of both visible and invisible flicker on users of the illuminated area. These effects range from headaches, eyestrain and reduced visual performance, to more severe impacts such as seizures in individuals with photosensitive epilepsy.

PosiDim is designed and manufactured by Digilin in Australia.