Lamp symbol
Also called Light bulb, Pilot light, Indicator lamp
A lamp or indicator light. Pilot lights on control panels often carry a letter for their colour: R red, G green, A amber.
What the lamp symbol means
A lamp or indicator light. Pilot lights on control panels often carry a letter for their colour: R red, G green, A amber.
ANSI and IEC symbols
A circle with a filament loop inside. Pilot lights are also drawn as a circle with rays or a colour letter.
ANSI SVGWhere you see it
Indicator and pilot lights on panels, and lighting circuits.
What is written next to it
On a schematic, the lamp usually carries its designator, colour and voltage, such as PL1 green 24 V or H1.
Related symbols
Frequently asked questions
What does the lamp symbol look like?
On ANSI drawings: A circle with a filament loop inside. Pilot lights are also drawn as a circle with rays or a colour letter. In IEC 60617: A circle with a cross inside.
Is the lamp symbol the same in IEC and ANSI?
No. A circle with a cross inside. The IEC 60617 number is S00965.
Where is a lamp used?
Indicator and pilot lights on panels, and lighting circuits.
- In production since 2014
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- On MODEC FPSO projects since 2016