Overvoltage protection up to 4,000 V No premature 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 thanks to retro-fit E27 socket for common HQL/NAV lamps The lamp can be operated on HQL Voschlat devices and also directly on 230V without conversion. NAV ballasts must be disconnected Optimally arranged LEDs enable even light distribution Lamp efficiency of up to 135 lm / W through the use of high-quality Lm80 certified LEDs