Osram QT-FH 1X21w electronic ballast dimmable

The Osram QT-FH 1X21W is a dimmable electronic ballast designed to drive a single 21W FH-type fluorescent tube. Built in metal, this compact control gear measures 360 × 30 × 28 mm with a fixing length of 350 mm, making it easy to install inside ceiling luminaires and fluorescent light fittings.

The integrated dimming function allows smooth adjustment of light output, making this ballast especially suitable for applications where precise light level control is required. Compatible with an input voltage of 220–240 V, it delivers an operational lifetime of up to 50,000 hours and meets energy efficiency class A2, ensuring low energy consumption over time. The IP20 protection rating limits its use to dry indoor environments. As a technical component, no specific environment links apply.