Indicators & Display
Small Indicator Light Bulbs & Parts
Electronic Surplus distributes state-of-the-art indicator lamps and light bulbs. An indicator light bulb you know when the device to which it’s attached is experiencing a malfunction. This provides an added level of information and/or safety, depending on the device in question. With one of our small indicator light bulbs, you’ll know right away if something’s wrong.
If the specific indicator lamp or part you’re looking for isn’t in stock, request it and we’ll reach out to you shortly. If you have other questions about our inventory, don’t hesitate to get in touch. Browse our selection of small indicator lamps below.
- Transistor Electronics Corp - TEC - L-1022-1A02-F2L-02 - Lamps & Lights. Aircraft Panel indicator, Red LED.IN STOCK - MORE THAN 100 READY TO SHIP!
TEC - Transistor Electronics Corp - L-1022-1A02-F2L-02
TEC Aircraft Panel Indicator Red LED
Lamps & Lights.
Panel indicator
Red LED.
Threaded Bushing, 6.3mm long.
Mount: Panel
Contacts: 2 Turret Posts. Gold
Dimensions: Body 12.6mm D x 12.6mm high.
Lens: 8.4 mm D x 8.8mm high.
Learn More - Transistor Electronics Corp TEC - DLR-5540C-9 - Panel Indicator for T1-3/4
Transistor Electronics Corp TEC - DLR-5540C-9 - Panel Indicator
Indicator Light for T1-3/4 Flanged Lamp Panel Mount
Lens: White
Connection: 3 Solder Lugs
Note: Mounting Nut Not Included
Vintage - New Old Stock - Rare
Learn More -
TEC - Transistor Electronics Corp - 2259982-L Lamp Holder W/28V Pilot Lamp #387 LampSpecial Price $2.98 Regular Price $6.95IN STOCK - MORE THAN 100 READY TO SHIP!TEC - Transistor Electronics Corp - 2259982-L Lamp Holder W/28V Pilot Lamp #387 Lamp Instrument / Panel Indicator Holder Gold Plated Contacts White Caps 387 Lamp Specifications Below Bulb Shape: T1.75 Bulb Base Type: Single Contact Midget Flanged Voltage: 28 Wattage: 1 W Operating Life: 7,000 hr Dimmable: Yes PHOTOMETRIC: Efficacy: 4 LPW, Lumens: 4 lm, CRI: 100 CRI DIMENSIONS: MOL: 0.6”, Diameter: 0.21” Note: Removed from Equipment Learn More - Texas Instruments - TIL322P - Opto Display. Seven Segment Numeric 0.5" (13mm)IN STOCK - MORE THAN 500 READY TO SHIP!
Texas Instruments - TIL322P - Opto Display.
Seven Segment Numeric 0.5".
Color@Wavelength: Red
Display Height: 13.0 mm
Forward Voltage-Max: 2.0 V
Number of Characters: 1.0
Operating Temperature-Min: -25.0 C
Operating Temperature-Max: 85.0 C
CC RHDP.
Color: Red
Genuine Vintage Texas Instruments - New Old Stock
Package: 10 Pin Dip.
Learn More - TELEMECANIQUE - XVAC341 -Stack Light Indicating Beacon Steady Red Lens.Special Price $28.98 Regular Price $42.50
TELEMECANIQUE - XVAC341 - Stack Light Indicating Beacon Steady Red Lens
Status: Discontinued
24353 Light Tree LMP-Red Stack Light
Lamp Purchase Separately.
7W Max.
Enclosure: Type 12 340 V Max
Package: Plastic with 2.5" ID.
Outside: 2-11/16" wide x 2-1/3" Tall Round.
Alternate: SCHNEIDER ELECTRIC 28047
Compliance: ANSI/ESD S20.20:2014 and BS EN 61340-5-1:2007 Electrostatic Control Standards.
Proudly Made in USA
Learn More - TAIWAN - ML-44 - #44 - Miniature Bulb, 6.3V 250mA. T-3-1/4, Package of 10.IN STOCK - MORE THAN 100 READY TO SHIP!
TAIWAN - ML-44 Lamps & Lights.
#44, 6.3V 250mA.
Size: T3-1/4 Bayonet.
Base: Miniature Bayonet (BA9S) Brass
Bulb Housing: Glass
Lumens: 11
Filament Shape: C-2R
Power: 1.6 Watt
Approximate Life: 3000 hours
Bulb Diameter: 0.4" Length: 1.190", Center Length: 0.780"
Applications: General Purpose and commonly used in pinball machines and coin-operated video games.
Package of 10.
From: 100/box.
Cross References: 21U517, 2FMP2, 40716, GE 25450, BC3255, B0026GYAM0, 25-010, 38C9280, 33459
Learn More - Sylvania - 1000PAR64Q/MFL - 1000WT. Halogen, Medium Flood, 120V Mogul End Prong BaseSpecial Price $42.98 Regular Price $54.95
Sylvania - 1000PAR64Q/MFL - 1000WT. Halogen, Medium Flood, 120V Mogul End Prong Base
1000 Watt 120 Volt PAR64 Mogul End Prong Base Sealed Beam Medium Flood Reflector Halogen Light Bulb
Bulb Type: Halogen
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Bulb Shape Type: Reflector
Bulb Shape: PAR64
Bulb Base Type: 2-Prong Mogul End-Prong
Bulb Base: G16d
Length: 6"
Voltage: 120
Wattage: 1000
Amperage: 8.33 -
Sylvania - 941 - Lamps & Lights. Panel Indicator 2-Pin Base, 48V. T2, Miniature Incandescent.Out of stockSylvania - 941 Lamps & Lights, 2, Incandescent, T2.
Panel indicator 48V.
Watts: 1.92W
Current: 0.04A (40mA)
Base: 2-Pin
Package: Tubular Bi-pin, clear lens.
Dimensions: 5.4mm in front of panel, 17mm behind panel, 5.0mm bi-pin electrical contacts.
Length: 1.10 (28.0mm)
Fits in 7.3mm hole.
Alternates: 941 , #941 , 941IC , #941IC
Learn More - Sylvania - 328 - #328 Lamps New 6V$0.89#328 Lamps New 6V 0.20A T-1 3/4 S.C. Mig Flanged. Learn More
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SOLICO - 6-167 - Lamps & Lights. 125VAC 1/3 watt. Mount: snap in.Special Price $3.98 Regular Price $5.95SOLICO - 6-167 - Lamps & Lights.
125VAC 1/3 Watt.
Mount: Snap-in Panel.
Body Material: Nylon
Lens Material: Polycarbonate
Lens: 20.9mm Long x 10.3mm Wide.
Front Panel View Overall: 31.3mm long x 17.2mm.
Hole in Panel must be 31.1mm - 31.5mm Long x 12.00mm - 12.2mm Wide.
Behind Panel: 20.5mm deep.
Contacts: (2) 1/4" Male Quick Connect Terminals.
Color: Red.
New Old Stock
Learn More - SCHURTER - 0035.6726 - Panel indicator, 220VAC 0.5W. Green.Special Price $2.98 Regular Price $4.00
SCHURTER - 0035.6726 - Lamps & Lights.
Panel indicator, 220VAC 0.5 watt.
Mount: Panel 3/8" Snap-Iin.
Lens: Green.
Note: Type LRE16/220V.
Learn More - SCHUKO - 1411-410 - Lamps & Lights. 10/16Amp 250V Socket.$3.50IN STOCK - MORE THAN 100 READY TO SHIP!
Lamps & Lights. 10Amp or 16Amp 250V socket.
Learn More - PHILIPS/NORELCO - 17593 - SO₂ Sulfur Dioxide Lamp 12VDC, 50W.Special Price $59.98 Regular Price $89.95READY TO SHIP - ONLY 30 LEFT IN STOCK!PHILIPS/NORELCO - 17593 - SO₂ Sulfur Dioxide Lamp 12VDC, 50W. The Philips/Norelco 17593 is a vintage SO₂ lamp (Sulfur Dioxide Lamp) often referred to as a biochemical analyzer lamp used in specialized electronic equipment and/or Medical Diagnostical Equipment. An SO₂ lamp (Sulfur Dioxide lamp) is a specialized ultraviolet (UV) light source primarily used inside environmental monitoring instruments to detect and measure sulfur dioxide (SO₂) gas levels in the air. Rather than lighting a room, these lamps act as the critical scientific tool inside industrial and environmental gas analyzers. Product Specifications • Brand/Manufacturer: Philips / Norelco • Part Number / SKU: 17593 • Model Type: SO₂ lamp (Sulfur Dioxide Lamp) • Voltage (Rated): 12 VDC • Wattage: 50 Watts • Base: Rectangular Ceramic Base Measuring Approximately 0.86” x 0.525” • Contact Pins are 0.090” and 0,1225” Diameter • Overall Length: 1.821” • Optimal Operating Voltage: 9.5 VDC (for maximizing the operational life of the lamp) Maximum Lifespan Rating: To achieve maximum operating hours, the system should be continuously supplied at 9.5 VDC. Operating at a full 12V will dramatically increase brightness but degrade the filament life exponentially. Applications: Cleveland Controls SO₂ Stack / Opacity Monitor and Medical Equipment. Made in Holland Genuine Philips/Norelco – Rare – Difficult SO₂ lamp to Find. PHILIPS/NORELCO - 17593 - SO₂ MONITOR LAMP 12VDC, 50W An SO₂ lamp (Sulfur Dioxide lamp) is a specialized ultraviolet (UV) light source primarily used inside environmental monitoring instruments to detect and measure sulfur dioxide (SO₂) gas levels in the air. Rather than lighting a room, these lamps act as the critical scientific tool inside industrial and environmental gas analyzers. How it Works The lamp operates on a principle known as UV fluorescence: 1. Excitation: The lamp pulses high-intensity UV light (usually at a wavelength of around 214 nm) into a sampling chamber. 2. Absorption: If SO₂ molecules from the air are present in the chamber, they absorb this specific wavelength and become "excited". 3. Fluorescence: As those SO₂ molecules cool down and return to their normal energy state, they emit a new UV light at a longer wavelength (around 330–390 nm). 4. Measurement: A detector measures the brightness of this emitted light. The brighter the light, the higher the concentration of sulfur dioxide in the air. Common Applications Because SO₂ is a toxic byproduct of burning fossil fuels, these lamps are critical components in: • Continuous Emissions Monitoring Systems (CEMS): Tracking pollution directly from factory and power plant smokestacks. • Ambient Air Quality Stations: Government and environmental monitoring networks that track urban smog and acid rain risks. • Industrial Safety Detectors: Protecting workers in chemical manufacturing, mining, and oil refining industries from dangerous gas leaks. Learn More
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- LXD - 29R3F 19KGZ - H4182A - LCD. 2-Digit 1/2"
LXD - 29R3F 19KGZ - H4182A - Liquid Crystal Display.
LXD Research & Display's High Reliability LCDs incorporate state-of-the-art material technologies to handle wide temperature operation and extreme outdoor environments. LXD's TN and STN products are used in lab instrumentation, parking meters, aerospace displays, drilling platforms, gas station pumps and construction equipment.
Black Characters, Light Background
2-Digit, 1/2"H.
Wide Field of View
View Angle: 1.30
18-pin DIP Package.
Operating Temperature: -30 C to +85 C
Front polarized to be vertical compatible with polarized sunglasses
Pins 2.54mm Spacing.
New Old Stock - Proudly Made in USA
Alternate/Replacement: H4182A (Note: Replacements are made in Asia)
Learn More - MARCO OAK - 53-52080 - Switch, Illuminated. Avionics Press Lite, DPDT Push On/Push Off.Special Price $18.98 Regular Price $26.50
MARCO OAK - 53-52080 - Switch, Illuminated, Avionics Press Lite.
Status: Discontinued
Panel Lamp Socket with Threaded Base.
DPDT Push On/Push Off.
Press Lite.
Includes Trim Nuts.
Connection: 6 Solder Terminals.
Fits 1/2" hole, Overall 2" tall.
Lens/Lamp (Midget Lamp) Purchase Separately.
Genuine Vintage Marco Oak - New Old Stock - Rare
Proudly Made in USA.
Learn More - LITON - LT6710R - Opto display. Dual 7 Segment 0.5".$2.00Opto display. Dual 7 Segment display 0.5". Red. Prewired on 1.0 x 1.5" PC board with 4" flat flexible ribbon cable with ten PC pins. Common Anode. Learn More
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LIGHTING COMPONENTS & DESIGN - 34H-0582 - Green 250V Neon panel-mt Indicator$6.95Indicator Lamp, Supply Voltage:250VAC, Lamp Base Type:Wire Leads Power Rating:330mW, Color:Green, Mounting Hole Dia:9.5mm, RoHS No Learn More - JKL COMPONENTS - 1493 - JKL1493 - Lamps S-8, 6.5V 2.75A, Incandescent
JKL COMPONENTS - 1493 Lamps.
Rated Volts:6.5V
Current: 2.75Amp.
Wattage: 18W
MSCP: 23.0
Lumens: 289.1
Lamp Size: S-8.
Base: BA15D Base
Filament Type: C-6 (Compact, Coiled Filament)
Double Contact, Bayonet.
Average Life: 100 Hours
Incandescent.
Note these are low voltage "NOT AUTOMOTIVE".
Applications: Microscopes, Xonix/Frigitronics Indirect Ophthalmoscopes.
Learn More - IEE - 11833-50-XXXX-1819 - 12-Lamp Projector AssemblySpecial Price $19.95 Regular Price $24.9512 standard (replaceable) Bayonet Lamps in a black panel mount assembly awaiting YOUR Custom Faceplate - 2" x 1.5" ( 3.5"L x 2.0" W x 2.25" D) LAMPS ARE 28V # 1819 NO FACE PLATES - made by IEE, famous for Military Displays Learn More
- Honeywell/Microswitch - PTL2151 – Model -B - Lighted Indicator 24V “NO Lens”, Factory NewHoneywell/Microswitch - PTL2151 – Model -B - Lighted Indicator 24V “NO Lens”, Factory New The Honeywell/Microswitch PTL2151 (Model B) is a discontinued, heavy-duty industrial 24V lighted indicator pilot device from the Honeywell Microswitch P-Series product line. It is designed for panel mounting in control systems, automation setups, and machinery panels. Status: Discontinued Key Product Specifications • Manufacturer: Honeywell / Microswitch • Part Number: PTL2151 • Model Designation: Model L-B • Voltage Rating: 24 Volts • Lens Status: No Lens (Plastic color lenses and custom legend plates were originally sold separately to match specific system requirements). • Model: B • Environment: Oil Tight Seal Made in USA Factory New Old Stock – Rare – Genuine Honeywell Learn More
- General Electric - SSL-140 - LED Displays Red 0.16" 7-Segment, Solid State Lamp (SSL)
General Electric - SSL-140 - LED Displays, Solid State Lamp (SSL)
One of General Electric's most well-known displays, the SSL-140 is an early seven-segment LED in a tiny surface mount package. The SSL-140 is a single die device, in that all of the segments are constructed on the same lump of silicon. The display's decimal point is a separate small cubical die located in the right side of the display area. The SSL-140's dies are bonded to a ceramic wafer with gold leads, with an enclosing plastic cover to protect the fragile dies and bond wires.
Red 0.16" 7-Segment with Decimal Point
Common Cathod
20mA Max.
One of the Very First LED displays - built in Cleveland by General Electric at the original Nela Lamp Plant. Nela Park was the first industrial park in the world being home to most of the lighting breakthroughs of the last century.
10 Gold Plated Leads
Standard 10 pin display. Long leads also serve as a heat sink to prevent damage to the plastic enclosure.
The earliest LED’s, light emitting diodes, were produced in the early 1960’s. General Electric was one of the first companies to offer a visible light emitting diode in 1967. SSL LED Prices back than where between $4 and $32 apiece.
Genuine Vintage General Electric - New Old Stock - Very Rare - Own A piece of American Lighting History
Proudly Made in USA
Learn More - General Electric - 8-359 - 9V 4A SINGLE CONTACT PREFOCUSSpecial Price $2.63 Regular Price $3.509V 4A SINGLE CONTACT PREFOCUS CLEAR (SOUND REPRODUCER) Learn More
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Dialco/Dialight - 507-3904 Red - Panel ind lamps 3V 15MA red lensSpecial Price $2.96 Regular Price $3.95Panel ind lamps 3V 15MA red lens cylin tubular 6.8mm in front of panel, 16.2mm behind panel, 5.2mm Bi-pin leads, Fits in 7.3mm hole Learn More