Taiwan 20w 2100lm DLC UL Listed T8 Tube 4ft LED light

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Product Description:

Taiwan 20w 2100lm DLC UL Listed T8 Tube 4ft LED light

ItemLT01-T840   
Description4’LED Tube 1200mm
Diameter30 mm
Wattage18W/20W
LED ModuleSMD LED 256pcs  
Input voltage100~240 / 120~277 VAC
Frequency50/60 HZ
Color Temperature3000 warm, 4000 neutral, 5000 day light , 6000 cool
CRI3000k>75, 4000,5000,6000>70, >80 available on request
Luminous flux1800lm / 2100lm
Illuminance 1M385 lux /435lux
Weight365 g
Body material6063 reinforced aluminum alloy with surface treatment
Cover materialOptical grade polycarbonate with Japanese made diffuser bead
CertificationCE FCC RoHS UL cUL CNS 

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Q:How much is the voltage across the 20 LED lamps in series?
Each LED is about 3V, and the 20 series is 60V
Q:What are the power connections for the LED light string?
This advantage can be centralized control, inconvenience is unable to achieve a single LED light string lighting effect and switch control, which specific way can be measured by their own. I use the LED lamp string is Zhongshan Greenman with total power and parallel connected to
Q:What's the price of the LED light string?
The LED panel lamp has 4 aluminum substrates on each side and has 2 aluminum substrates on each side. 600x600 is about 1.5 yuan each.
Q:Led full-color light string and how to control wiring
Four line color data signal exposed lamp connected: lamp electrode with GND surface control signal is connected with the DAT clock with CLK
Q:How do you connect the LED lights?
Connect the bottom edge of the triangle symbol to the high voltage and the sharp angle to the low voltage. The bottom edge of the next LED is connected with a sharp angle
Q:The number of lights in the LED string
In general, 1210 specifications of the band is 60 LED per meter, 5050 specifications of the band is 30 LED per meter, the special has 60 LED per meter.
Q:LED lights string broken, how to repair?
As an emergency treatment, you can also short-circuit the open circuit of the LED lights. Used to restore normal work.
Q:How does the LED light string flash?
Because of the special volt ampere characteristics, LED can not use constant voltage driving mode, but is driven by cross flow. The direct drawback of cross flow drive, however, is heat. So people invented the drive mode of pulse drive. For example, 0.5 seconds per second, so that the amount of heat in the LED is reduced by half. Then turn the frequency up to 100 times per second, lighting for 0.005 seconds each time. At this point, the power of the LED is not the same, and people do not feel blinking. What's more, in this driving mode, an approximate cross flow drive (that is, the current is not necessarily precise) can be simplified, which simplifies the drive circuit (the precise cross flow source is very complex)
Q:What's the average luminous current of an ordinary LED lamp string?
If the lamp light current series is their rated current,
Q:Why are there three lines for the controller of the LED light string? What are they?
65 of the LED tubes are connected with 3-4 resistors. One end of the resistor is connected to the positive electrode of the LED, and the other end of the resistor is connected to the common anode of the controller. The blue wire is attached to the negative electrode of the LED tube.

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