How to Make Your Led Lights Flash Red and Green

Are you looking for a unique and eye-catching way to decorate your home during the holidays? If so, then adding flashing red and green LED lights is the perfect option! Not only will these colored lights make your home stand out from all the others, but they’ll also help spread some festive cheer with their cheerful illumination.

How to Make Your Led Lights Flash Red and Green

Plus, with an easy setup process that doesn’t require many materials or experience in lighting up homes, it’s no wonder why this project has become so popular among DIYers nationwide. In this blog post, we’ll provide step-by-step instructions on how to make your LED lights flash red and green around your house – bringing life and joy into every room!

Can I Make My Led Lights Two Colors?

Yes, it is possible to make LED lights in two colors. You can easily create a dynamic lighting effect by using two different colors of LEDs in the same circuit or light fixture. One way to do this is to use a double-pole, double-throw (DPDT) switch, which allows you to route power from a single source to either of two different LEDs.

To create a flashing effect, you can then use a timer or dimmer switch to control the flow of power between the two colors. The result is a dynamic light show that alternates between red and green lights on your LED display!

Use a Timer or Dimmer Switch

Another way to get two different colors in an LED circuit is by using a color-changing RGB LED, which can be programmed to cycle through various colors. You can also use two different colored LEDs in conjunction with a dimmer switch or timer to create an alternating flashing effect on your display.

No matter what method you use, you will end up with an eye-catching dynamic light show that makes a statement and draws attention! With the right setup, creating red and green flashing lights is easy and fun. So why wait? Get started making your own personalized lighting display today!

10 Methods How to Make Your Led Lights Flash Red and Green

1. Use a Red and Green Led Light:

The simplest way to make your led lights flash red and green is by purchasing a light that already flashes both colors. These lights are available in the market, and you can use them indoors or outdoors for your decorations.

You can also find them in many different sizes and shapes, so you’ll be able to choose the one that best suits your needs. To make sure your led lights flash properly, you’ll need to buy a light that is specifically designed for this purpose. However, you may need to purchase some additional accessories, such as a power supply and cables.

2. Use a Programmable Controller:

You can also use a programmable controller to control the flashing of your Led lights. There are several controllers available in the market that have red and green settings, allowing you to switch between them at any point. To use a programmable controller, first, connect it to the lights with the appropriate wires and then configure the settings as desired.

Programmable Controller to Control

Once configured, you can program the controller to make the lights flash red and green in whatever pattern you desire. It is important to consider how much control you want over the colors and the speed of the flashing before purchasing a controller.

3. Use Two Separate Light Sources:

To make your led lights flash red and green, you can also use two separate light sources, one for each color. You can purchase a red Led bulb and a green one, or even better, you can use RGB (Red, Green, Blue) bulbs to create the effect.

This technique is better if you want to be able to control the timing and speed of the flashing. With two separate light sources, you can use a light dimmer switch or a timer to control the speed and duration of your flashing lights. This is also a good option if you want to create a multicolored effect.

4. Use Alternating Red and Green Cables:

This method involves wiring two cables – one in red and the other in green – together so that when current is passed through them, it will cause alternating flashes of both colors. This technique works best when used with high-powered led strips mounted on walls or ceilings. To create this setup, you will need two power supplies – one for the red wire and one for the green.

Connect both to a switch or relay that will control the flow of current. Make sure you label each wire to ensure they are connected correctly. Once the wiring is complete, flip the switch to turn on the power. This will cause the lights to alternate between red and green. If you want to change the speed or pattern of the flashes, you can adjust the switch.

5. Use a Tinted Diffuser Film:

By using tinted diffuser films on your led lights, you can easily create a glowing red and green effect. You can find these films in the market or purchase pre-tinted diffuser films online. To apply the films, thoroughly clean the surface of your led lights and make sure to dry them completely. Then cut the films into strips according to size and shape and attach them to your lights.

Now switch on your light and watch as it creates a delightful red and green effect! For best results, use two different colors of diffuser films – one for red and one for green – to get the most vibrant colors. Finally, be sure not to leave your led lights on for a long period of time, or it can damage them.

Switch on Your Light

6. Use Different Settings on Your Controller:

If you’re using a programmable controller to control your led lights, you can use different settings to make them flash red and green. For example, some controllers allow you to set individual colors for different sections of an image or pattern so that when it is displayed, it will appear as though the colors are flashing back and forth. You can also adjust the speed of the flash and the frequency.

This type of control is great for creating an exciting visual effect at your next event or even in your home. Experiment with different settings to find out what works best for you. If you’re using a controller that has specific settings for red and green, try to make sure they are set correctly so your colors will be accurate.

7. Use a Color Wheel Effect:

Another way to make your led lights flash red and green is by using a color wheel effect. This effect works best with RGB bulbs since it is possible to create a continuous cycle of red, green, and blue lights. To use this effect, you will need to program each LED bulb with the appropriate settings.

This includes setting a “start” color and an “end” color in between which the LEDs will transition smoothly. You can also set up a gradual transition speed which determines how quickly each of the colors fades into the next. With this effect, your lights will create a beautiful, ever-changing pattern of red and green. This is perfect for creating an eye-catching lighting display.

8. Use Red and Green Filters:

By using colored filters on your led lights, you can make them flash red and green. You can find these filters in the market or online. Keep in mind that although these filters are quite efficient, they are not very durable as compared to other methods mentioned above. Nevertheless, they are still a great option for those looking to add some fun effects to their lighting setup.

To use the filters, simply attach them directly onto your led lights and you’re good to go! However, if you want to be extra careful and make sure that your filter lasts longer, you should use a separate power source for it. This way, the red and green filters will not be overworked and you can enjoy them for much longer without having to replace them.

Use a Separate Power Source

9. Use an Arduino Kit:

If you have access to a programming language such as C++ or Arduino, you can easily create a program for your controller which will control the flashing of your led lights between red and green by sending certain commands through the kit.

This is a great way to customize your lighting effect and make it truly unique. To learn more about Arduino programming, check out the official site or take a look at some tutorials online. With this method, you can also ensure that your lights will behave exactly the way you want them to!

10. Use Pre-Programmed Lights:

There are some lights available in the market which come pre-programmed with a red and green flashing effect. These lights are perfect for people who don’t have access to programming languages or controllers.

All you need to do is plug them into a power source and let them work their magic! It’s a great way to add colorful effects to your display without spending too much time or money. If you’re planning a big event or celebration, pre-programmed lights are the way to go.

Things to Consider When Making Your Led Lights Flash Red and Green

1. Safety:

When making your LED lights flash red and green, it is important to consider the safety of yourself, other people, and your property. Make sure that the lights are securely attached and placed in a way that won’t cause anyone harm or damage any property.

Lights Are Securely Attached

2. Design:

You will need to consider the design of your LED lights before making them flash red and green. Take into account the size and shape of the lights, as well as where you plan on placing them for display. This will help ensure that you get the most out of your project.

3. Power Source:

Before beginning your project, be sure to have an appropriate power source handy. The type of power source necessary will depend on the type of LED light used, so double-check to make sure everything is compatible before proceeding.

4. Colors:

Consider the colors that you want to use for your flashing light display. Red and green are classic combinations, but other colors can be used as well. Select the hue and intensity of each color carefully to get the desired effect.

5. Power Supply:

Once you have determined the type of power source necessary, make sure that it is capable of supplying a sufficient amount of electricity to your LED lights in order for them to flash properly. If not, consider alternatives such as using batteries or purchasing a more powerful power supply.

6. Installation:

When installing your lights, it is important to note where each one will be placed so that they all fit together nicely and create an even display. Make sure all cables are securely connected and that no loose wiring is exposed.

All Cables Are Securely Connected

7. Timing:

You will want to set the timing of your lights so that they flash at the pace and pattern that you desire. This can be done manually or with the help of a microcontroller or timer.

Following these steps and tips can help ensure that your LED lights look great and perform optimally. By taking the time to consider all of these factors, you can make sure that your LED light display is a success!


Lighting is a great way to make your space stand out. Whether you want a simple red and green flash, or something more show-stopping, knowing how to make your LED lights flash red and green will help you craft a unique experience that will wow your guests.

Take the time to experiment with light patterns and colors to create just the right atmosphere. With a few components and some basic wiring, you can take any room from mundane to magic in just minutes. So get creative and have fun turning your everyday home lighting into extraordinary holiday experiences.

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Jennifer Branett

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