Voltage
Normally the LED strip light is DC12V OR DC24V. You just need to check the label in the strip light package. It is an easy job.
Wattage Per Meter
The next factor you need to consider is how much wattage of your led strips.
We can check this in the led strip light label.
The strip light has high wattage per meter and low wattage per meter. You need to think about where you install the strips.
Calculate The Power Consumption
For example, if your strip lights are 18w/m. The living room needs 8 meters. Then total wattage is 18w/w*8meter=144w.
Noticed: The most important is when we choose the power supply, the wattage needs 20% bigger than the strip's wattage. For example, 144w*120%=172.8W.
