R7S LED Light - Energy-saving LED technology offers savings of 50% to 90%. Our goal is to find solutions to reduce energy consumption and improve lighting performance through continuous research. The mission of is to focus on the most difficult challenges of the future, such as reducing energy consumption and carbon dioxide emissions, increasing the lifespan of our products, and reducing maintenance costs. Dimmer Description Only compatible with dimmers based on the SCR (Silicon Controlled Rectifier) thyristor principle. A: If the dimmer works on the thyristor (Silicon Controlled Rectifier) principle, it is basically compatible with our R7S LED. B: If the dimmer is incompatible, it will display: Flashes when dimming. Small dimming range. Not dimmable. These are directly related to dimmer compatibility R7S LED 78mm / 118mm Dimmable Light. Please use a ballast and starter with thyristor principle function (silicon controlled rectifier) R7S LED 78mm / 118mm Bulbs - An optimal choice to