An LED has two prospects: the anode (beneficial) as well as the cathode (detrimental). It is crucial to attach the LED the correct way all around inside a circuit—LEDs are polarized factors, and reversing the polarity will prevent them from working. The phrase initially appeared during the English language in https://www.uk-exhibitionstands.co.uk/enhance-your-brand-presence-with-custom-exhibition-stands-from-uk-exhibition-stands/