The LED image would be the standard image for your diode, with the addition of two tiny arrows denoting the emission of sunshine. The circuit is made up of an LED, a voltage supply and a resistor to manage the current and voltage. How can an LED perform? Interpretive exhibitions https://www.uk-exhibitionstands.co.uk/product/exhibition-kit-1-1-x-table-cloth-2-x-roller-banners/