led light is too bright to reduce the current and power solution:
1. The constant current control tube is external, and the total resistance value of the light bar current detection resistance connected between the 5 poles of the constant current control tube and the C 5 end of the integrated circuit to the ground can be increased. This type of resistance is mostly composed of several small resistance values in parallel. Generally remove one or two to reduce the current and power;
2. The constant current control tube is integrated inside the chip. The 5-pole leading foot of the control tube is usually called lSEN, and the current and power can be reduced by increasing the small resistance value of the external resistance of the foot;
3. The constant current control chip is equipped with a lamp bar current setting pin, most of which are marked as ISET, and an external resistance of tens of thousands of ohms is connected to the ground. Increasing the resistance value of the resistance can reduce the current and power.
led lights and matching drivers are calculated according to power, to ensure that the led lamp working current is within a reasonable range, if the lamp is too bright can be replaced with a smaller power lamp. To reduce the brightness of the existing lamp, only by reducing the output current of the driver. A suitable resistor can be connected in series at the output end of the driver to limit the current, the disadvantage is that the resistor also consumes power.
For the lamp integrated with the driver and the lamp board, disconnect the copper moor on the circuit board of the driver output end and string it into the appropriate resistance.
led lights are powered by constant current
The current is directly linked to the led brightness
Constant-current power supply is characterized by series resistors or diodes that are insensitive
The simplest way is to parallel resistors
But in this way, the brightness is reduced, but the power consumption is not reduced
There are 3 ways to solve it:
1, adjust the parameters of the drive power supply, which needs to understand the circuit principle
2, change the power slightly smaller drive power, need to buy
3, the line is connected to the high-voltage non-polar capacitor, need to be calculated according to the original led lamp power.