0.63 Watt miniature - B3 1/2 Flange - 10 Average rated hours - Flange base - 2.33 Volt

Precision Lighting for High-Intensity Portable Gear

When your specialized equipment requires a specific power profile and a secure fit, the Satco 0.63-Watt B3.5 miniature bulb provides the reliable performance you need. Engineered for 2.33V systems, this incandescent lamp is a critical component for high-performance flashlights, diagnostic tools, and signaling devices. The P13.5s mini flange base ensures the bulb remains locked firmly in place, even in handheld devices subject to constant movement or vibration.

This bulb is designed for precision rather than duration. With a 10-hour average rated life, it is optimized to deliver a bright, concentrated output for short-duration tasks where visibility is paramount. Its clear glass finish and C-2R filament work together to provide a full 360-degree beam spread, ensuring that every corner of your workspace or focal point is illuminated without shadows or interference.

• Secure Mini Flange Base: The P13.5s base design prevents slipping and ensures a steady electrical connection in portable equipment.
• Calibrated for 2.33 Volts: Specifically designed to match the power output of multi-cell battery configurations for consistent brightness.
• Omnidirectional Light: The B3.5 shape and clear lens offer a complete 360-degree beam spread for maximum utility in reflector-based housings.
• Professional Grade: Ideal for use in classic high-output flashlights, emergency medical diagnostic lights, and industrial testing equipment.
• Compact Profile: Small enough to fit into tight internal assemblies while providing the heat resistance and reliability of traditional incandescent technology.