The Werma 641.300.00 is a yellow permanent light element from the modular KombiSIGN 71 series, engineered to provide continuous visual signaling in factories and automation setups. Featuring a Ø70 mm yellow polycarbonate dome and a BA15d socket for filament bulbs up to 5 W (bulb not included), this unit offers a highly visible steady light that supports a wide input voltage range from 12 to 230 VAC/DC. Its rugged IP65 rating ensures resistance to dust and water jets, while the modular twist-lock base connection allows for fast integration into multi-segment stack light towers. Suitable for status indication, warning signals, or machine operation feedback. Key Features: • Permanent yellow light module for KombiSIGN 71 towers • Ø70 mm yellow lens with BA15d bulb socket • Supports 12–230 VAC/DC operation • IP65-rated for industrial environments • Heat-resistant, shock-resistant polycarbonate housing • Operating temperature: –20 °C to +50 °C • Tool-free twist-lock installation into tower systems