... New down light series 1, AC 220V ,50-60HZ 2, Energy saving 90% 3, Life time more than 50,000 hours ... , fast response(no delay),no damage with frequent switching and energy saving 90% than that of conventional down lights.Circuit Design ... lighting,commercial theater, museum lightingSpecification for LED down light series: Energy saving 90% LED down light, ceiling down light with high ...