LED tube with two white lines, a yellow line, how to connect as follows:
The two white lines are the fire line (L) and the zero line (N), and the yellow line is grounded.
The LED comes with a constant current source and does not require a ballast or starter. Generally, the lamp above T8 is because the lamp space is large enough, and the constant current source can be installed inside the lamp. When installing, you can remove the ballast and starter in the original bracket and install the lamp directly.
Because the tube of T5 and T4LED is small, it can't fit the constant current source. Only the constant current source can be installed in the bracket. Therefore, when the manufacturer is doing T4T5, the bracket will be arranged, and the constant current source will be installed in the bracket. The lamp is directional when installed. The direction is reversed and the lamp is not lit. We are considering adding some conversion circuits so that the lamp will work even if the lamp is reversed.
Voltage: AC 85V - AC 245V, can work normally. However, if the long-term voltage is too high or too low, it will affect the power factor of the constant current source, which means that it will have a slight impact on the energy saving effect. At the same time, it will also affect the life of the constant current source.
LED tubes are also commonly known as light tubes and fluorescent tubes, and their light sources use LEDs as illuminants. The traditional fluorescent tube is also called a fluorescent lamp. There is a filament at each end of the lamp. The tube is filled with a small amount of argon and thin mercury vapor. The inner wall of the tube is coated with phosphor, and the gas between the two filaments emits ultraviolet light when it conducts electricity. Let the phosphor emit visible light. Led tubes have many advantages, generally used for general lighting, office buildings, shopping malls, restaurants, schools, homes, factories and other indoor lighting.
The yellow one is the ground line, and the two white lines are casually connected to the live line and the zero line.
Generally speaking, the two white lines are the fire line (L) and the zero line (N), and the yellow line is grounded.
--Shenzhen Toplight lighting Co. Ltd.(led tube light/LED linear light
/led high bay light/led tri-proof light/Toplight/Toplight Lighting)