As a high-grade indoor lighting fixture, LED panel light has beautiful and simple design, good lighting effect, and brings people comfortable and soft light. The driving power supply, as the core component of LED panel lights, plays a key role. An LED panel lamp without driving power is equivalent to a fish leaving the water. The LED panel lamp uses an independent constant current isolation drive power supply, which is convenient for installation and maintenance, and perfectly matches with the light source. The whole lamp can reach more than 90LM/W.
What is the driving power supply? The driving power supply is a power converter that can convert the power supply into a specific voltage and current to drive the LED to emit light. Generally, the input of LED driving power includes high-voltage power frequency AC, low-voltage DC, high-voltage DC, low-voltage high-frequency AC, etc. The output of LED driving power supply is mostly a constant current source that can change the voltage with the change of LED forward voltage drop.
There are two kinds of LED driving power supply for LED panel lights on the market. One is constant current power supply, which has high efficiency, PF value up to 0.95, and high cost performance; The other is to use a constant voltage power supply with constant current, which has stable performance, low efficiency and high cost. Generally, this power supply is mainly used for export. The other party requires certification and must use a power supply with safety regulations. In fact, it is very safe for families to use constant current power supply, because it is difficult for users to access the power supply, and the lamp itself uses safe low-voltage power.
