TruOpto OSCL4L3131A 3mm 'Lemon' Colour LED

LED - Light Emitting Diode - a small light source

Lemon - A yellow coloured citrus fruit

Colour - The categorised spectrum of light visable to humans

LED - Light Emitting Diode. A bulb that is very efficient at producing light. Often small.

Wide - Something with a large width.

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