4 Led Unit Square
4 LED Unit
4 LED Unit
4 LED Unit
4 LED Unit
4 LED Unit
4 LED Unit
4 LED Unit
4 LED Unit
4 LED Unit

4 LED Unit

LED Size
Regular price $7.00
  • In stock, ready to ship
  • Inventory on the way


Our 4-LED unit has four high brightness, high-quality LEDs attached to a single join with two lead wires ready to connect to your power source.

For the 5mm, 3mm, and 1.8mm LEDs there is an 8-inch wire to each LED from the circuit, giving you ample space to separate your LEDs to light more space with fewer wires to connect.

For the Mega, Chip, Nano, and Pico size LEDs there is a 3-inch wire to each LED from the circuit, since these are meant for use in smaller scale trains or models, and lots of excess wire can be a hassle.

Choose from three different voltages: 3 volt, 5-12 volt, or 7-19 volt AC/DC/DCC. Every unit is pre-wired to the proper resistors. The AC/DC/DCC option also has the proper bridge rectifiers, so they are ready to hook up to your train transformer or other 7-19 volt power source.

You have a choice of either cool or warm white. Our wide selection of battery holders means you can have more flexibility with your layout.

This is a great bright way to add nice bright light to your model trainspassenger stations and buildings, or your own ideas!

These micro LED lights are ideal for projects that require a lot of illumination but very little space for installing lighting. Popular among our modelers, miniaturist and dollhouse customers, the flexible and thin magnet wire allows customized placement for each LED with up to a maximum of 16 inches between LEDs.

"What do I need to run these?"

All of our LEDs come with a 2 year warranty!

This unit was originally suggested by our friend Stephen Priest, Master Model Railroader. He uses it for HO scale locomotive and passenger car lighting.

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Customer Reviews

Based on 50 reviews
LED Pico Light Kit

Nice kit which worked perfectly for my project. I was hesitant at first when ordering whether Pico LEDs would shed enough light. They did and loved the small size which makes them blend in with project.

David Ruppersberg
Combined 4 LEDs

The pre-braided set of 4 white LEDs was magical. It made it so much easier than having to wire 4 individual LEDs in series and cheaper too! Highly recommend this product and will likely be purchasing more in the future!

LED lites

A great company, had what I was looking for, they shipped quickly and gave detailed instructions. Thank you!!


I've been utilizing these LEDs for years now, retrofitting my O Scale New York City Subway carmodels (actual car classes built after b1948 with fluorescent lighting) to simulate fluorescent lighting in their interiors. I've also retrifitted my O Scale streamliners (many of which were equipped with interior fluorescent lighting in the 1950s and 1960s) so that they have simulated interior fluorescent lighting. It's great when i place older standard passenger cars in the same consist with the streamlined cars, for people observing my train sets see the difference. Great stuff.

Paul J. Messina

rey gerochi
LED Lights (10 watts) for house number box

Works great and reasonable price and shipping.

Really great product

Really well made. Hugely simplified my project and for a very low cost.

HO passenger cars

These lights worked great for lighting an HO scale passenger car. Easy to install.

4 LED Unit

Just as Described. Worked fine for me.

Tiny light side/big light brightness

Rebuilt a Halloween table decoration that need more light.

Thomas Olmsted
Great Service

Your customer service is outstanding. You reviewed my order and discovered I purchased the incorrect power supply for the lights I ordered. You let me know and adjusted my order saving me $2. That was above and beyond normal customer service. Thank you.

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