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Neon Indicator and LED Indicator Lights

Neon Indicator and LED indicator lights are used within applications to show when a device or process is in operation. Applications are varied and include industrial control panels, medical, test & measurement, power distribution, security and access, home appliances and HVAC equipment. The light sources for these devices are now primarily neon lamps or LEDs with some use of incandescent lamps.

Mains Neon Indicator

Neon indicator lights are most suited to mains voltage applications of 110VAC, 220VAC and +90VDC.  A neon indicator consists of two electrodes within a glass case containing neon gas. When a mains voltage is applied, the neon gas ionizes and starts to glow which allows a small current to pass between the electrodes. A lower voltage will maintain the operation of the lamp once it has been ionized.

Mains neon indicators are available in various sizes making them ideal for mains panel applications. They do however, have a limited brightness and less colour variables than LEDs.

LED Indicator Light

LED stands for Light Emitting Diode. They usually run on direct current (DC) as the voltage in AC mains applications is too high for the LED to accept. They are most suitable for 12VDC and 24VDC applications although, LED indicator lights 240V  are avaliable.  LEDs can be manufactured to contain a circuit to allow them to operate at mains voltage if required.  Generally, LED indicator lights produce brighter light than other lamps whilst consuming less power and maintain a longer operational life.  Consequently, they are often a more expensive option.

Incandescent Panel Lamp

An incandescent lamp is an electric light with a wire filament which glows when a current is passed through it. They can operate from 1.5V to 300V and work well with AC or DC voltages. They are however, very inefficient with a high percentage of energy lost as heat. They have a shorter operational life than LEDs but they are a less expensive alternative for low voltage applications.

LED indicator lights are widely used now in most applications due to their durability and efficiency. However, neon indicator lamps are the most cost effective option for a mains driven application.

Panel indicator light

At Alan Butcher Components, we off a wide range of panel indicator lights. Our range can be split into four key areas:

1) Control Panel indicator lights
2) Switch size panel indicator lights
3) Anti-vandal LED indicator lamps
4) Flashing Indicator lamps.

Control Panel Indicator Lights
Our range of neon indicator lights are manufactured by Everel, Italy. They are available in 6mm, 10mm, 12mm and 13mm panel cutouts. Colours offered are red, green and amber. Our 10mm range also has a version in blue. Connection options are leads or spade terminals. Below are some examples of our mains neon indicator lights:

LED indicator lights 240v

The majority of our products contain a neon indicator lamp 240V however, our range does include LED indicator lights 240V. As an example, the SX33C167XE00013 has a 10mm panel cutout, T80⁰C with 6.3mm tabs. It also has anti rotation ribs. There is an MOQ associated with this product so please call us on 01258 456360 for more details.

For more information on the Everel Signal Lights range go to  Along with control panel indicator lights, Everel manufacture switches, IEC connectors, motors and ventilation equipment. Explore their website and contact us for more details.

Everel Website

Switch Size Panel Indicators

These panel mount neon indicators have the same panel cutout as our range of switches. They can be fitted next to a switch on a control panel to ensure continuity of design. Our neon indicator panel mount cutout sizes are:

Mains neon lamps

A5 – 13x19mmB5 – 11x30mm
Red Neon Indicator Light - A51121G00000Amber Panel Indicator Light - B51121H000000
B7 – 22x30mmABRR – 20mm
Green Panel Indicator Light - B71121E00000012V Red Indicator light - ABRR027

The above are all neon indiator lamps 240V

12v panel indicator light

These 12V indicator lights contain incandescent lamps which enable them to run at low voltage.

Our switch indicator lights snap fit easily into a panel and have quick fit connections, either 4.8mm or 6.3mm depending on the range.

We are able to supply 12V panel indicator lights in other cut-outs so please contact us to discuss your requirements.

Deca SwitchLab 16mm Indicator lights

The Deca products can be fitted with neon, incandescent or LED lamps. The D16 series offers a choice of shape round, square or rectangular and colour blue, green, orange, red, white or yellow. Due to the number of choices available we don’t hold stock of these items, however, lead-times are not long and MOQs are not high.

They are a modular product so you need to select lens shape, colour and lamp according to your requirements, as below:

Lens Shape – Square, round or rectangular, Concave or Flat
Lamps – LED – 6v, 12V or 24VDC,
Neon – 110 or 220VAC
Incandescent – 6V-60VAC/DC
Lens Colours – blue, green, orange, red, white, yellow

So, if you require a rectangular, green, LED indicator light 12V the Deca SwitchLab range may offer the solution.

Anti Vandal LED Indicator Lights, 12mm cutout

Our stock items are 24V LED indicator lights, red or green, 12mm. They are IP67 rated with a stainless steel body making them suitable for harsh environments. The lamp life is 40,000 hours. These are excellent LED indicator panel mount products for a wide variety of applications. Should you require LED indicator lights 12V, please contact us.

Other voltages, cutouts and colours are available so please let us know your requirements. To view the switches on offer in our anti vandal range please click here:

Flashing Indicator Light

We offer two 16mm devices with flashing indicator lamps.

Control panel indicator lights are an important visual component on many applications. Our comprehensive range offers a wide selection of products. The relationship we have with all our suppliers enables us to respond to enquiries quickly and efficiently. We ensure we work closely with both customers and our manufactures to select the right product for specific applications. The quality of the products we supply and the excellent technical assistance available enables us to offer a high level of service and expertise.

Contact Us

For more information on our panel indicator lamp range, please visit our website at The selection criteria at the top right of the page allows you to narrow down your search. Data sheets may be downloaded from the individual product pages and you can also request further information by using the “Enquire About This Product” form.

Tel: 01258 456360


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