Description
12V / 24V Ba15d LED Bulb – 15 LED Frosted S25 Double Contact Bayonet Replacement (1142 / SBC)
Upgrade your caravan, motorhome, boat or 12V lighting system with this 15 LED Ba15d (SBC / 1142) frosted LED bulb, designed as a direct replacement for traditional 10W halogen or tungsten S25 bayonet lamps. With a standard 15mm double-contact bayonet base and 25mm diameter, it fits straight into existing fittings while delivering brighter, more efficient light using just 1.4W of power. The frosted diffuser conceals the LEDs, making it ideal for exposed fittings where the lamp remains visible.
This 15-LED bayonet tower lamp has been engineered to replace 15mm Ba15d (SBC / 1142) tungsten lamps in low voltage systems.
Producing approximately 120 lumens, it is around 25% brighter than a 10W halogen, while consuming just 1.4W — dramatically reducing energy usage and battery drain in leisure and marine environments.
The frosted plastic diffuser softens and spreads the light evenly while hiding the individual LEDs, making it perfect for wall lights, ceiling lights and fittings where the bulb is visible.
Key Features & Benefits
Direct Ba15d / SBC replacement
Standard 15mm double-contact bayonet base for quick installation.
Frosted diffuser finish
Conceals LEDs for a smooth, traditional bulb appearance.
Brighter than 10W halogen
Improved light output with significantly lower energy consumption.
Ultra-efficient 1.4W power draw
Extends battery life in caravans, campervans and boats.
12V & 24V compatible
Regulated from 10–30V DC for stable performance in fluctuating vehicle systems.
Built-in protection circuitry
Includes voltage spike suppressor and fuse — ideal for marine and automotive use.
Technical Specifications
- Cap Type: Ba15d (SBC / 1142)
- Size: S25
- Diameter: 25mm
- Length: 48mm (including cap)
- Voltage: 10–30V DC regulated
- Power Consumption: 1.4W
- Approximate Output: Cool White – 130 lumens, Warm White – 127 lumens
- lrotection: Integrated fuse & voltage spike suppression
- Guarantee: 2 Years
Ideal For
- Caravan & motorhome wall lights
- Boat & yacht cabin lighting
- Campervan interior lighting
- Horseboxes & utility vehicles
- Off-grid solar lighting systems
- Any visible bayonet fitting requiring a clean, traditional look






