What are constant voltage power supplies?

Constant voltage power supplies are used to convert AC to DC to store-bought LEDs, which usually have drivers or resistors built into them. 12V LED power supplies (or LED power adapters) take the standard household voltage of 120VAC down to the 12VDC that domestic 12V LEDs require.

 

 

Commercial LEDs will usually require a separate constant current driver or current limiting resistor in order to regulate current, ensuring that they stay at appropriate temperatures, maintain consistent performance and maximize their overall lifespan.

 

What are constant voltage power supplies?