10Pcs Neon Light Bulbs 4x10mm 5x13mm 220V | Main Power Indicator with Built-in Resistor

These neon light bulbs are designed for use as main power indicators in a wide range of electronic devices and appliances. Operating at 220V with a built-in resistor, they provide a clear and reliable visual signal for power status. Available in a pack of 10, you get both 4x10mm and 5x13mm sizes in red, blue, and green options.

Each bulb is built for long-lasting performance and consistent brightness. The integrated resistor simplifies installation, making them a convenient choice for repairs, DIY projects, or new builds. Their compact size allows them to fit into tight spaces on control panels, switches, and power strips.

Whether you are repairing an old radio, building a custom power supply, or adding a power indicator to a project, these neon bulbs offer a simple and effective solution. The different colors help you quickly identify different functions or power states at a glance.

Key Features and Benefits

- Built-in resistor that simplifies wiring and ensures safe, stable operation at 220V

• Two common sizes (4x10mm and 5x13mm) that provide flexibility for different panel openings and applications

• Three color options (red, blue, green) that allow for easy visual identification of power status or different functions

• Low power consumption that makes them an energy-efficient choice for long-term use as a power indicator

• Compact and durable design that fits securely into standard panel mounts and withstands regular use

Who Is This For

- Electronics hobbyists and DIYers building or repairing power supplies, amplifiers, and custom circuits

• Technicians and repair professionals needing reliable replacement indicators for appliances and industrial equipment

• Anyone building or modifying control panels, switch boxes, or power strips who needs clear power status lights

Usage Scenario

Mark was troubleshooting an old tabletop radio that had a dead power light. After opening the case, he found the original neon bulb had failed. He ordered this pack of 10 bulbs, which gave him the exact 5x13mm size he needed. The built-in resistor made the swap simple, and within minutes the radio's power indicator was glowing red again. He now has extra bulbs for future repairs.

Micro Comparison

Unlike standard LED indicators that often require separate current-limiting resistors and careful polarity, these neon bulbs come with a built-in resistor and work with AC power directly. This makes them much simpler to install, especially for replacing older neon bulbs in existing equipment. They also provide a warm, classic glow that many prefer for vintage-style projects.

Specifications

Type: Neon indicator bulb with built-in resistor

Voltage: 220V AC

Sizes: 4x10mm and 5x13mm (diameter x length)

Colors: Red, Blue, Green

Luminous Flux: Less than 60 lumens

Power Source: DC (compatible with AC circuits as specified)

Package Quantity: 10 pieces

Package Includes

- 10 x Neon Light Bulbs (mix of sizes and colors as shown)

Why You Will Love It

These neon bulbs give you a simple, reliable way to add or restore a power indicator on your projects. The included resistor saves you time and hassle during installation. With multiple sizes and colors in one pack, you have the right bulb for many different jobs.

Questions and Answers

Question: Do these bulbs work on 110V or 120V circuits?

Answer: These bulbs are designed for 220V AC. Using them on a lower voltage will result in very dim or no light.

Question: Are the resistors already attached to the bulbs?

Answer: Yes, each bulb has a built-in resistor, so you do not need to add one externally.

Question: Can I use these for a power strip indicator light?

Answer: Yes, they are suitable for use as power indicators in power strips, as long as the circuit is 220V.

Question: How do I know which size to order for my project?

Answer: The pack includes both 4x10mm and 5x13mm bulbs. Measure the hole in your panel to see which size fits best.

Question: Are these bulbs polarized? Do I need to connect them a certain way?

Answer: No, these neon bulbs are not polarized and can be connected in either direction on an AC circuit.