Energy Source for LEDs: How to Pick the Right Power Supply
GL LED
Function
The right LED power supplies (LED drivers) ensure that the LEDs function and perform at their best. The correct power also enhances LEDs’ durability and longevity.
Wattage
Calculate how many watts a LED consumes.
Power consumption = Wattage/ft * ft.
Recommend power supply = power consumption * 1.2.
For example, you have 10 feet of LED strip lights that 3W/ft. The power consumption of the strip lights is 36W (3W/ft * 12 feet). A recommended power supply is 43.2W (36W * 1.2). If there is no power supply with the exact 43.2W, the one with higher wattages is the best alternative.
Voltage/Current
An output voltage of a power supply ?= Operation voltage of LEDs
An input voltage of a power supply ?= AC of the installed location of LEDs
It is very important to confirm the above two factors before you buy any power supplies.
Dimmability
If there is no specs mention dimming of LEDs, it is assumed the product is not dimmable. Otherwise, you should choose a dimmable power supply to adjust the LEDs brightness.
IP Ratings
It is also critical to consider the installed location of a power supply.