Constant Voltage Power Supplies
LED Switching Power Supply - DiodeDrive® Series - 60-100W Enclosed Power Supply - 12V
DiodeDrive® Desktop AC Power Adapter - 12 VDC Switching Power Supply - 60W-120W
Mean Well LED Switching Power Supply - LPV Series 20-100W Single Output LED Power Supply - 12V DC
Mean Well LED Switching Power Supply - LRS / SE Series - 100-1000W - Enclosed - 12V DC
DiodeDrive® Wall-Mounted AC Adapter - 12 VDC Power Supply - Black / White - 12W / 18W / 24W / 36W / 48W
ARM-12V-SArmacost Lighting Standard 12V DC LED Power Supply - 120V AC Input - 12W / 24W / 36W / 60W
ARM-12V-DArmacost Lighting Universal Dimmable 12V DC LED Power Supply - 120V AC Input - 20W / 24W / 45W / 60W / 120W
CVPSD-xWP-12V-JBDimmable LED Driver - Enclosed Power Supply - 25-60W - 12 Volt DC
MxL12DC-ARMagnitude Dimmable LED Power Supply - 60-200W - 12V DC
Mean Well LED Switching Power Supply - AP Series 12-35W Single Output LED Power Supply - 12V DC
CVPS-xWM-12VLED Switching Power Supply - DiodeDrive® Series - 60W-150W Enclosed Power Supply - 12V
PWM-x-12Mean Well LED Switching Power Supply - PWM Series 40-120W LED Power Supply - 12V Dimmable
Mean Well LED Switching Power Supply - SP Series 100-320W Enclosed Power Supply with Built-in PFC - 12V DC
KVP-12120-TDLDimmable LED Driver - Enclosed Power Supply - 120W - 12 Volt DC
ExR12DCMagnitude Dimmable LED Driver - Super Compact - 12 Volt
DI-12V-SE-xDiode LED® - SWITCHEX® LED Driver and Dimmer Switch - 12V - 40W / 60W
CVPSD-200WM-12V-JB-xDimmable LED Power Supply - DiodeDrive® Series - 200W Enclosed Power Supply - 12V
CVPS-xWH-12VLED Switching Power Supply - DiodeDrive® Series - 60W-240W Enclosed Power Supply - 12V
RS-x-12Mean Well LED Switching Power Supply - RS Series 50W Enclosed LED Power Supply - 12V DC
LPV-150-12-xMean Well LED Switching Power Supply - LPV Series 120W Single Output LED Power Supply - 12V DC - 200-277 VAC - 120W
Why would I need a constant voltage power supply?
Constant voltage power supplies are suitable for powering LEDs equipped with resistors or constant current drivers, which regulate the flow of current and may require a constant-voltage power supply when the desired operating voltage differs from the available power source (such as in homes or vehicles).
For instance, LED light strips often incorporate current-regulating resistors. If the light strip operates within a range of 9-14.8 volts in direct current (DC), it can be directly connected to a 12-volt DC system in a vehicle without requiring a constant-voltage power supply. However, if you want to install the same light strip in a home with a 120-volt alternating current (AC) wiring system, you must reduce and convert the voltage from AC to DC using a power supply.
In certain cases, constant-current drivers are available that match the voltage and current requirements of both the product and the power source (home, vehicle, etc.), eliminating the need for a constant-voltage power supply.
What are the differences between a power supply and a driver?
A driver and a power supply are the same thing. These terms are used interchangeably. Drivers tend to refer more to constant current power supplies.
What features are available with constant voltage power supplies?
Certain power supplies and drivers are compatible with TRIAC and other dimmers. If you wish to dim your LEDs, purchase a compatible power supply that allows you to dim 0-100%.
These are 120V and plug into a home’s outlet after being connected to the LED via a barrel connector.
Waterproof voltage power supplies help power outdoor and underwater LEDs in pools, fountains, etc.
What types of LEDs would require a constant voltage power supply?
The most common use for constant voltage power supplies is LED strip lights.
What are the benefits of using a constant voltage power supply?
Constant voltage supplies provide a consistent voltage across the LEDs so that minimal voltage drop ensures all your LEDs work properly and effectively.
What is the difference between NEC Class 2 and IEC Class II?
NEC Class 2 refers to the output voltage and power of AC/DC power supplies. So it focuses on wiring details like wire size, derating factors, installation, and overcurrent protection limits. Class 2 power supplies are considered less of a fire hazard and have less risk of causing electrical shocks.
On the other hand, IEC Class II refers to the internal construction of the power supply and its electrical insulation. With Class II power supplies, there are two layers of insulation, and they have a two-wire power cord.
For more details on Class 2 and Class II, read our blog “Is There a Difference Between Class 2 and Class II Power Supplies?”