Thanks to innovative technology, the Osram Ultra Life PY21W is a light bulb with a powerful effect. With a nominal power of 21 watts, a maximum power consumption of 25 watts, and a nominal voltage of 21 volts, it produces a distinctly strong luminosity. Classified in the ECE category PY21W, this signal lamp serves as an indispensable partner. The light bulb ensures optimal illumination and guarantees a high level of safety. Additionally, the Osram Ultra Life PY21W signal lamp impresses with its remarkable, long-lasting brightness, achieving a lifespan of up to 1,000 hours. This durability reduces risks such as lamp failures at night and lowers maintenance intervals.