For the first time, an LED light source replaces the classic NAV light color (approx. 2,100 K), which is often required for lighting in historical ambiences, Surge protection up to 4,000 V, No early failures: SecureSolderConnect technology prevents hairline cracks and cold solder joints, Unique: Integrated, temperature-dependent power regulation to 50% to protect against overheating, AirFin cooling: 2.5 times larger cooling surface than comparable products and up to 20% reduced weight load on the lamp base, Easy replacement with retro-fit E27 socket for common HQL/NAV lamps, Lamp can be operated on HQL Voschlat devices and directly on 230V without conversion. NAV ballasts must be disconnected, Uniform light distribution through optimally arranged LEDs, Lamp efficiency of up to 102 lm / W through the use of high-quality lm80 validated LEDs,