Cool White LED Bulb 12V DC – Pre-Wired Model Railway Building Light

Bring a welcoming, realistic glow to your model railway buildings with this Cool white pre-wired LED lighting module. Its compact size makes it suitable for lighting houses, shops and other structures on your layout, with lower power consumption and less heat than traditional grain-of-wheat bulbs.

Key Features

• Cool white light for a cosy, natural-looking building interior.
• Compact pre-assembled LED module with approximately 100mm flying leads.
• Low current draw: approximately 3mA at 12V DC.
• Designed for 5–14V DC supply (12V DC nominal).
• Reverse-polarity protection: incorrect polarity prevents illumination rather than damaging the module.
• Brightness can be adjusted by reducing the supply voltage or using an appropriately rated series resistor.

Specifications

• Light colour: Cool white
• Supply: 5–14V DC
• Current: approximately 3mA at 12V DC
• Dimensions: approximately 7mm wide × 12mm long × 4.5mm thick (excluding leads)
• Lead length: approximately 100mm
• Configuration: Pre-wired LED lighting module

Installation

Mount the LED inside a model building using a suitable adhesive, position it to illuminate the windows, and connect the flying leads to a suitable DC power supply. Observe the marked lead polarity. The module will not illuminate if connected in reverse.

HobbyTrax Expert Tip

Cool white lighting works particularly well for homes, cottages, heritage buildings and older-style shop interiors. For a more realistic effect, diffuse the light with translucent material and prevent unwanted light escaping through building walls.

Frequently Asked Questions

Does this need a separate resistor for 12V DC?
The module is described as operating directly from a 5–14V DC supply, including 12V DC. An additional resistor is only needed if you want to reduce brightness.

Is it suitable for model railway houses?
Yes. Its compact, low-power design is intended for illuminating model buildings.

Can I connect it to AC or DCC track power?
Use a suitable regulated DC supply. Do not connect it directly to AC or DCC track power without appropriate conversion and protection.

What is included?
One pre-assembled warm white LED module with flying leads.