Neon Indicator Lamps

Neon indicator lamps (also called pilot lights) are lights used on some electrical equipment to indicate that electrical power is available or that the device is working. Light-emitting diodes (LEDs) are often used as an alternative. They generally have a long life, low current drain and are resistant to shock and vibration.

How do neon indicator lamps work?

Neon indicator lamps are designed with two electrodes within a small glass case. Two tin plated wires extend out of the lamp to make electrical connections to the electrodes. These lamps are filled with either a neon and argon gas mixture, with neon gas used entirely for high brightness lamps. When a voltage is applied, the gas ionizes, allowing a small current to travel from one electrode to the other. Once this has happened, a lower voltage maintains the operation of the lamp.

What are the different types of neon indicator lamps?

Neon indicator lamps are designed in different colours and with varying brightness levels. They are available in different lengths, voltages and current ratings.


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Description Price Lamp Base Lamp Size Light Colour Voltage Rating Current Rating Length Life Hours
RS Stock No. 891-3761
Mfr. Part No.2150QA3
BrandVCC
HK$20.909
Each (In a Pack of 10)
units
Wire Terminal - - 105 → 125 V ac - 41.91 mm -
RS Stock No. 891-4086
Mfr. Part No.2153QA5
BrandVCC
HK$37.82
Each
units
Wire Terminal - - 208 → 250 V ac - 41.91 mm -
RS Stock No. 104-705
BrandRS PRO
HK$13.21
Each
units
Telephone Slide T5.5 Red 220/250 V 1.5 mA 30 mm 25000h
RS Stock No. 891-3752
Mfr. Part No.2150A4
BrandVCC
HK$19.399
Each (In a Pack of 10)
units
Wire Terminal - White 105 → 125 V ac - 44.45 mm -
RS Stock No. 891-4067
Mfr. Part No.2111A3
BrandVCC
HK$21.375
Each (In a Pack of 10)
units
Wire Terminal - - 208 → 250 V ac - 42.42 mm -
RS Stock No. 655-9334
BrandRS PRO
HK$6.744
Each (In a Pack of 10)
units
BA9 10.3 mm Orange 220/250 V 1.8 mA 30 mm 50000h
RS Stock No. 891-4452
Mfr. Part No.2620QK4
BrandVCC
HK$26.10
Each (In a Pack of 10)
units
Wire Terminal - - 105 → 125 V ac - 17.53 mm -
RS Stock No. 655-9407
BrandRS PRO
HK$2.20
Each (In a Pack of 10)
units
Wire Terminal 4 mm Clear 100/120/220/250 V 600 μA 37 mm 20000h
RS Stock No. 891-3765
Mfr. Part No.2150QA4
BrandVCC
HK$20.909
Each (In a Pack of 10)
units
Wire Terminal - - 105 → 125 V ac - 41.91 mm -
RS Stock No. 790-3044
Mfr. Part No.8350
HK$44.21
Each
units
- - - 230 V 400 μA - -
RS Stock No. 891-4569
Mfr. Part No.2120A1
BrandVCC
HK$21.171
Each (In a Pack of 10)
units
Wire Terminal - - 105 → 125 V ac - 42.42 mm -
RS Stock No. 891-3759
Mfr. Part No.2152A5
BrandVCC
HK$34.14
Each
units
Wire Terminal - Green 105 → 125 V ac - 44.45 mm -
RS Stock No. 211-162
BrandRS PRO
HK$3.165
Each (In a Pack of 10)
units
BA9s T3 1/4 Red 125 V - 28 mm 25000h
RS Stock No. 104-783
BrandRS PRO
HK$20.43
Each
units
Telephone Slide T5.5 Red 220/250 V 2.6 mA 30 mm 25000h
RS Stock No. 891-4077
Mfr. Part No.2151QA3
BrandVCC
HK$20.88
Each (In a Pack of 10)
units
Wire Terminal - - 208 → 250 V ac - 41.91 mm -
RS Stock No. 891-3755
Mfr. Part No.2150A2
BrandVCC
HK$19.375
Each (In a Pack of 10)
units
Wire Terminal - Clear 105 → 125 V ac - 44.45 mm -
RS Stock No. 104-761
BrandRS PRO
HK$4.60
Each (In a Pack of 10)
units
BA9s T10 Orange 220/250 V 2.5 mA 28 mm 50000h
RS Stock No. 630-0205
Mfr. Part No.BN-5701-1-R
BrandSato Parts
HK$18.76
Each
units
Solder Tabs - Red 100 → 125 V ac - 43 mm 20000h
RS Stock No. 891-3771
Mfr. Part No.2110A3
BrandVCC
HK$23.489
Each (In a Pack of 10)
units
Wire Terminal - Amber 105 → 125 V ac - 42.42 mm -
RS Stock No. 891-3793
Mfr. Part No.2110QA4
BrandVCC
HK$24.082
Each (In a Pack of 10)
units
Wire Terminal - - 105 → 125 V ac - 42.67 mm -
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