The working principle of LED fluorescent tube
First of all, we must understand his structure
The standard LED fluorescent tube structure is: aluminum plastic tube (conducive to heat dissipation) + aluminum substrate (including LED lamp beads) + drive power + plug
The working principle of LED fluorescent tube: The power supply provides DC power, and the current is constant. The greater the current, the greater the brightness of the LED fluorescent tube. On the contrary, the smaller the current, the darker the brightness of the LED fluorescent tube. The LED fluorescent tube uses a constant current power supply, so that the safe use of the LED lamp beads can be ensured, and its ideal luminous intensity can be exerted. Cheap LED fluorescent tubes can't do it.
LED lamp beads emit heat, and heat dissipation is critical, which directly affects the lifespan. The aluminum substrate is used for heat dissipation, and the LED lamp beads are arranged evenly according to a reasonable series-parallel relationship.
When in use, there is no need for ballasts and starters, and it is directly energized. One end of the zero line and the other end of the live line will light up when it is energized.
When buying LED fluorescent tubes, you must understand the working principle of LED fluorescent tubes, so that you can choose LED fluorescent tubes with reasonable prices. Like cheap LED fluorescent tubes, some are made of plastic tubes, and some are made of glass tubes. They do not meet the principles of LED fluorescent tubes. Although they are cheap, they have a short service life and violate the principle of LED fluorescent tubes.
