Gebruikersinterface: Hoewel het niet verplicht is, wordt de fabrikanten ten zeerste aanbevolen producten te ontwerpen in overeenstemming met de norm gebruikersinterface stroombesparingsvoorzieningen - IEEE 1621 (formeel „Standard for User Interface Elements in Power Control of Electronic Devices Employed in Office/Consumer Environments” (Norm voor gebruikersinterface-elementen in stroombesparingsvoorzieningen van elektronische apparaten die worden gebruikt in kantoor-/consumentenomgevingen)).
User Interface: Although not mandatory, manufacturers are strongly recommended to design products in accordance with the Power Control User Interface Standard – IEEE 1621 (formally known as ‘Standard for User Interface Elements in Power Control of Electronic Devices Employed in Office/Consumer Environments’).