The method of judging the voltage of led linear lights:
(1) Look at the label on the led linear light. Generally, regular LED linear light manufacturers will put a label on the lamp before it leaves the factory to indicate the specific parameters of the product. We can see the voltage used by the LED line light through the label.
(2) What to do when there is no label? There is no label on the lamp to indicate the voltage. If the lamp is transparent glue, you can clearly see the components inside the lamp body, through the number of lamp beads, resistance , capacitors and other components to judge, and then test the lighting condition of the lamp from low to high voltage, during which you can use some power measuring tools to assist in the test. If the internal components of the lamp body cannot be clearly seen from the outside, it is necessary to disassemble the lamp for inspection.
Generally speaking, the lamp beads selected for LED linear lights have a single voltage of about 1.8-3V, and the general current will be controlled at 18mA-20mA. For different color temperatures and number of chips, the voltage of each LED lamp is different. It needs to be checked by a special engineer or technician.