12x25mm Dome Side Pro LED Neon Flex Tube For 12mm Light Strips

Model: FLNLT-BR-S1225 Review stars 0.0 (0 Reviews) Various options in stock
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Product Information

Transform your standard 12mm wide LED strips into professional, dotless neon fixtures with our 12x25mm Pro Side-Emitting Silicone LED Neon Flex Tube. This product is a high-quality, waterproof silicone diffuser designed for lighting designers, contractors, and DIY enthusiasts who demand a seamless, uniform light output.

A key innovation is the integrated smooth plastic sheet, which simplifies the process of threading your LED strip and reinforces the tube's structure for consistent curves. This flexible strip light neon flex tube allows you to create custom signage, architectural accents, and decorative lighting with the exact color and brightness of your chosen LED strip.

Please note, this is a diffuser tube only; the LED strip is sold separately.

Engineered for Ease of Use and Durability

  • The integrated plastic sheet not only simplifies installation but also provides structural support, ensuring clean, consistent bends without kinking.
  • The high-density silicone material provides excellent light diffusion while protecting the internal LED strip from dust, debris, and moisture when properly sealed.
  • Made from durable, UV-resistant, and flame-retardant silicone for long-lasting performance indoors and outdoors.
  • The 12x25mm profile provides a substantial, highly visible line of light suitable for commercial signage and architectural applications.
  • Can be mounted with dedicated clips, or installed into aluminum or flexible mounting profiles for professional results.

Product Specifications

Parameter Details
Product Model FLNLT-BR-S1225
Product Type Silicone Neon Diffuser Sleeve (LED Strip Not Included)
Outer Dimensions (W x H) 12mm x 25mm
Compatible PCB Width Up to 12mm
Light Emitting Direction Side Emitting (Dome Top)
Body Material High-Grade Silicone
Internal Guide Integrated Plastic Sheet
Color White
Available Lengths Sold by the meter
Max Uncut Length 50 meters
IP Rating IP67 (Requires proper sealing with end caps and silicone glue)
Compatible Mounting Clip Size 14mm x 19mm
Compatible End Caps Straight-out, Side-out, No-hole End Cap (Sold Separately)

Application Scenarios

Custom Neon SignagePerfect for fabricating bespoke business logos, quotes, and artistic signs. The side-emitting design is ideal for clear, legible lettering that captures the classic neon aesthetic with modern LED efficiency.
Architectural Outline LightingTrace the contours of buildings, rooflines, windows, and doorways to create stunning facade lighting. Its durable, weatherproof design ensures reliable outdoor performance.
Retail and Hospitality EnvironmentsUse this LED neon flex tube to create high-impact accent lighting in bars, restaurants, and retail displays. Guide customers, highlight products, or create a unique ambiance.
Advanced DIY ProjectsElevate your DIY projects by converting standard LED strips into high-end linear fixtures for gaming rooms, home theaters, or custom furniture lighting.

Frequently Asked Questions

Q: Does this neon tube come with an LED strip inside?

A: No, this is a silicone diffuser sleeve only. You must purchase a compatible 12mm wide LED strip separately to install inside it.

Q: What is the maximum width of an LED strip that can fit inside?

A: This neon flex tube is specifically designed for bare board LED strips with a maximum PCB width of 12mm.

Q: How do I insert my LED strip into the silicone tube?

A: The tube has an integrated plastic guide to make insertion easier. We recommend attaching a string to the end of your LED strip to help pull it through. 

Q: How flexible is this tube? Can I make sharp letters?

A: The tube is highly flexible for creating smooth curves and lettering. However, avoid bending it tighter than the specified minimum bend radius to prevent damage.

Q: Where can I cut the neon tube?

A: You can cut the silicone tube at any point with a sharp blade to achieve your desired length. The cutting interval of your final fixture will be determined by the cut marks on the LED strip you install inside.

 

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Files for FLNLT-BR-S1225
Need this page for a project file or an engineering check? Click Open PDF, then save or print it from your browser. For CAD drawings, IES files or a signed test report, contact our engineers and quote the model number.

Images

These images were taken with Canon EOS 5D Mark IV and the studio light source is provided by Ra 98's full spectrum LED strip to realistically reproduce the colors of the item itself. All copyrights are created by the superlightingled team, please feel free to browse and download if you are a registered user!

12x25mm Dome Side Pro LED Neon Flex Tube For 12mm Light Strips12x25mm Dome Side Pro LED Neon Flex Tube For 12mm Light Strips12x25mm Dome Side Pro LED Neon Flex Tube For 12mm Light Strips

LED Strip Lights Guide

Here you can learn anything about LED strip lights — pick the topic you are interested in to go deeper. We cover LED strip lights, power supplies, controllers, accessories, and how to connect LED strip lights.  You can also watch our demo videos.


Led strip lights

Everything you need to know before you buying led strip lights

Top 6 Considerations Before Buying LED Strip Lights

1. Where do I want to place the LED strip lights? Indoor or outdoor?

• What are waterproof led strip lights?

• How to cut and connect waterproof led strip lights?

2. How much LED brightness do I need?

3. The working voltage is available?

• 5V VS 12V VS 24V led strips

• AC VS DC 

4. How long is the LED strip light suitable for my project?

5. Do I need an LED light controller to adjust the LED color and brightness?

6. How to power the LED strip lights?

What are led strip lights?

1. How do led strip lights work?

2. How long can you run an LED strip?

3. How long do LED strip lights last?

Is it worth getting led strip lights?  

1. Do LED strip lights use a lot of electricity?

2. Why are LED lights energy efficient?

3. Are LED Strip Lights sustainable?

4. What are the pron and cons of led strip lights?

5. Precautions for led strip lights

Are led strip lights safe?

1. Do LED strip lights overheat?

2. How do you stop LED strips from overheating?

3. Can LED strips catch fire?

4. Is it safe to sleep with LED strip lights on?  

What are the types of led strip lights? Flexible led strip lights VS rigid led strip lights -

1. What are flexible led strip lights?

2. What are rigid led strip lights?

3. What happens if you bend LED strip lights?

4. What is the difference between flexible led strips and rigid led strips?

How to cut led light strips? 

1. Can you cut led light strips? 

2. What happens if you cut an led strip?

3. How to cut led strip lights?

4. How to connect RGB color changing led strip lights with a connector?

5. How to know what your led strip light is?

How to choose the correct SMD led for your strip?

Which is the brightest SMD LED?

What does SMD 5050 mean?

How many lumens is a 5050 SMD LED?

How to know what type of LED strip?

What is the difference between 2835 and 5050 LED?

 

COB led strip light

What is COB led strip light?

1. What is COB?

2. What is the COB production process? 

3. Different types of COB strip lights

4. What is the difference between COB and SMD led strip lights?

5. What is the difference between COB and LED?

6. Are COB led strips better?

7. How to cut and connect COB led strips?

8. How to install COB led strip lights?

9. Can COB light strips use aluminum channels?

10. Why choose superlightingled?

 

Led neon lights

What are led neon lights?

1. What is led neon light?

2. What are neon led lights used for?

3. Are led neon lights good?

4. How to choose led neon rope lights?

5. Are led neon ropes use DC or AC?

6. Can you change the light-emitting angle or the luminous way of neon led strip?

7. Silicone Tube VS PVC Tube

How to make led neon lights?

1. How to cut led neon lights

2. Can led neon lights be connected?

3. Easy 7 steps to make led neon lights

4. How to install led neon rope?

 

Addressable led strip

Ultimate Guide to Choosing the Right Addressable LED Strip

What is an addressable LED strip?

Can you cut addressable LED strips?

How to judge if an LED strip is individually addressable?

How to choose the best DC12V addressable led strips?

How to choose the best DC5V digital led strips?

How to choose the right IC for your project?

Which IC is most commonly used?

How do I know my IC type?

How do I know if my IC is good or bad?

How many types of IC are there?

How to wire addressable led strips?

 

Color, color temperature, and CRI

The Color Difference Between Warm White 2700K, 3000K, 4000K, 6000K Pure White and 7000K Cool White

1. What is color temperature?

2. What color temperature is right for me?

• 2700K VS 3000K

• How obvious is the difference between 2700K and 3000K?

• Warm White 3000K VS Natural White 4000K VS Daylight White 6000K

• Warm White VS Cool White

3. Enjoy 2700K, 4000K, 6000K

4. Further Reading: How to install Warm White LED light strip?

How to choose the right color for your led strip lights? -

1. How many colors are in LED strip lights? 

2. What do LED light colors mean?

3. Why do white LED light turns to yellow? 

4. Why are your led strip lights not the same color?

5. What is the most relaxing color for LED lights? 

6. What color led lights is best for sleeping?

7. Are led lights bad for your eyes? 

8. Is cool white or warm white better for eyes?

What is color temperature?

1. What is the best color temperature?

2. Does color temperature keep the same as time goes by?

3. What color temperature is best for night?

4. Led strip lights about color temperature,CCT VS RGBW VS RGBCCT;

What is color rendering in​dex?

1. What is CRI in led lights?

2. How to choose the right CRI when buying led strip lights?

3. What is the relationship between CRI and brightness?

4. Is higher CRI better? High CRI VS Low CRI;

5. How to find CRI value? 

 


Led strip light connection

How to connect led strip lights?

1. How to connect led strip lights together?

2. How to connect LED light strips without connectors?

3. How to solder wires to LED strips?

4. How to connect LED strips without soldering?

5. Which one is better between soldering and using a connector?

6. How to connect mutiple led strip lights?

7. How many LED strip lights can you connect?

How to connect led strip to the power supply?

1. Ensuring the working voltage and power first

2. How to hardwire led strip lights?

3. Can I connect multiple LED strips to the same LED power supply?

How to wire led strip lights?

How to wire single color led strip lights?

How to wire tunable white/CCT led strip lights?

How to wire RGB color changing led strip lights?

How to wire RGBW led strips?

How to wire RGBCCT led strip lights?

How to wire addressable led strips?

 


Controller for led strip lights

How to choose led strip light controllers?

1. WIFI controller

2. RF controller

3. IR controller

4. Bluetooth controller

5. Remote control and panel control

6. Single color controller and multi-color controller

7. DMX512 controller

8. SPI controller

9. DALI controller

10. 0/1-10V dimmer

11. Triac series

12. Sonsor series

 


Led power supply

How to calculate power for led strip lights?

4 steps to calculate the power you need

Performance And Reasons Of LED Voltage Drop

How to choose led strip light power supply?

1. Alternating current power supply VS Direct current power supply

2. Constant current power supply VS Constant voltage power supply

3. How to choose the best led power supply for your led strip light?

 


Led strip light installlation

How to install led strip lights? What accessories will be needed?

1. Adhesive installation for IP20 and IP65 led strip lights

2. How to choose the right led tape?

3. Can IP20 and IP65 led strip lights use aluminum profiles?

4. How to use aluminum profiles?

5. Mounted clip installation for IP67 and IP68 light strips

How to install LED sensor stair lights?

Lighting Up Your Stairs With LED Strip Lights Ideas

How to install led strip lights on TV?

How to install led strip lights outdoor?

 


Accessories

How to choose led strip light connectors?

1. Are all LED light strip connectors the same?

2. How do LED strip lights connectors work?

3. What connectors do you need for LED strip lights?

4.  What are the different kinds of LED connectors?

5. How to choose the right connector for your led strip lights?

Ultimate Guide on Aluminum Profile for LED Strip Lighting

1. What are aluminium profiles used for?

2. Why choose aluminum profiles?

3. Different types of LED aluminum profiles

4. LED aluminum profile VS COB LED strips

5. How to install LED aluminum channels?

6. How To Get Ideal Light Diffuser For Your LED Strip?

7. Add Black Aluminum LED Light Diffusers For Your Home Lighting

8. How To Find The Right Aluminum LED Light Strip Diffuser Channel?

 

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