Bulb Slow Flash LED light
Slow Flash LED Sizes
Slow Flash LED light performance
Bulb Slow Flash LED
LED sizes

Slow Flashing LED Lights

Wire Length
Regular price $2.25
  • In stock, ready to ship
  • Inventory on the way


This LED has a nice, slow flash rate: one second on, one second off. Blinking Slow flash LEDs in blue

Slow flash LEDs are the same high-quality LEDs you’ve come to expect from Evan Designs with a pre-installed flash circuit. This circuit turns the light on for approximately one second and then off for the same amount of time.

These LEDs, which currently come in 4 different colors and 3 voltage ranges, are perfect when you need a slower flashing light.

There are many applications that would benefit from Slow Flash LEDs. Common ones include:
  • Water Towers
  • Maintenance vehicles
  • Road Construction and Hazards Lights
  • Navigation or Aviation Beacons
  • Buoys
  • Security Alarm Status Indicator

Buy with confidence! We have included the resistors if needed for the voltage you have selected. In the case of the 7-19 volt AC/DC LEDs we have added a resistor, bridge rectifier and filtering capacitor to be sure your LEDs work perfectly right out of the package.

"What do I need to run these?"

All of our LEDs come with a 2 year warranty!

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Customer Reviews

Based on 26 reviews
David J. McCartney

Needed a red slow-flash 5mm LED for an electronic project. Happy to have found exactly that at Evan Designs.
Instructions state that a 12V regulated transformer is required for non-battery operation, but the 5V cell phone charger I am using is working just fine.

Outstanding LED Bulbs

I purchased several 1.8mm and 5mm cool white 7-9 volt AC/DC/DCC to replace a burned out non-LED bulb on an o-gauge model railroad truss bridge. The bulb works perfectly. I did have to figure out how to fit the bulb into the old bridge housing, but I knew I would have to do that, and it ended up being very easy. I am very glad I found Evan Designs as a supplier of hobby components.


The lites worked fine. Very small, and cool. I was happy to find them.


Thanks, worked great for my project

Dan Grimestad


Great replacement for 3V Christmas lights

I had a number of battery powered figurines that lit up with Christmas light bulbs. Over the years some of the bulbs had burned out. You LEDs are the perfect replacement. They figurines now have a bright glow. Thanks for the quick shipment.

John Kennedy
Wood Vehicles

I like your products very much! They add a nice realistic touch to my vehicles that I make out of wood!

Paul Gasiorowski
Flshing LED,s

I used them on a Walther,s Power Plant smoke stack. I cut slots in the stack and inserted them, kept them in place with White glue. The power plant was cut and half and used as background buildings since the board width was only 12 inches. I added about 15 inches of wire to extend them, so I could have one switch that would turn on the flashers. When done I will send a picture or short video. I have not gotten around to using the other parts that I ordered.

Paul G

John Dickerson

Great product and great shipping thank ya'll

Orest Chornij
Blinking led

Absolutely perfect for the job!

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