Ziomitus 1156/1141/1003 P21W BA15S LED Bulb 6000K Daylight White 500 lm, 12V Plug-and-Play

Ziomitus 1156/1141/1003 P21W BA15S LED is a 12V-compatible, plug-and-play daylight-white (6000K) replacement bulb delivering about 500 lumens with a compact 0.65 × 1.95 inch form factor.

This LED lamp is designed to replace common BA15S/P21W bayonet bulbs in vehicles and small fixtures where a bright, cool white light is needed. It runs on a wide voltage range (AC10–24V / DC10–30V), fits many legacy socket codes (1156, 1141, 1003 and more), and is intended for applications including RV interior/exterior lights, reverse/backup lights, tail/brake lights, daytime running lights and landscape accents. The bulb uses efficient LED chips and thermal management to provide long service life with low power draw.

Will this bulb fit my vehicle or RV socket?

The Ziomitus bulb uses a standard single bayonet (BA15S) base and is compatible with numerous OEM codes: P21W, 1156, 1141, 1003 and many cross-reference numbers. Installation is plug-and-play—remove the old bayonet bulb and push-and-twist the Ziomitus lamp into the same socket.

• Fits BA15S / P21W sockets used in many cars, RVs, boats and trailers.
• Direct cross-references: 1156, 1141, 1003, 7506 and similar codes.
• Compact 0.65 × 1.95 in size to clear most housings and lenses.

How bright is the 6000K daylight white output?

This LED produces roughly 500 lumens at 5 watts, giving a bright, cool white illumination well suited for visibility tasks like reversing or task lighting. The 6000K color temperature delivers crisp, daylight-like white light that improves contrast and perceived brightness compared with warm incandescent bulbs.

• Output: ~500 lm from a 5W draw for energy-efficient illumination.
• Color temperature: 6000K daylight white for clear visibility.
• Suitable for reverse lights, DRLs, and accent or landscape lighting.

Is this LED durable and easy to use?

Ziomitus builds the bulb with quality LED chips, a driver suited to wide voltages, and thermal design intended to extend lifespan beyond 30,000 hours. The unit is non-dimmable and designed for stable operation across low-voltage systems without additional circuitry in many cases.

• Wide operating range: AC10–24V and DC10–30V for flexible installations.
• Expected lifespan: 30,000+ hours with proper use and ventilation.
• Non-dimmable — use only with compatible circuits and no dimmer controllers.

What should I know before buying and installing?

Confirm your fixture uses a BA15S/P21W base and that the bulb’s non-dimmable rating matches your circuit. If your system runs at higher mains voltages, a suitable 12/24V transformer or driver will be required. This LED is suitable for RVs, boats, cars and outdoor low-voltage landscape lighting where a compact bright white replacement is needed.

• Verify BA15S (single bayonet) socket compatibility before purchase.
• Not dimmable—do not use with dimmer switches or PWM controllers.
• Use an appropriate transformer if your supply exceeds the specified voltage range.

Who is this for: The Ziomitus 1156/1141/1003 P21W BA15S LED is aimed at vehicle owners, RV and boat enthusiasts, and DIY landscape or trailer lighting installers who want a compact, energy-efficient daylight-white replacement for common bayonet bulbs. Choose this bulb if you need plug-and-play compatibility with many bayonet sockets, a cool 6000K white output for better visibility, and low power consumption suitable for 12V systems. Avoid if you require dimmable performance or if your lighting circuit cannot match the bulb’s voltage specifications.