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

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Item	LT01-T840
Description	4’LED Tube 1200mm
Diameter	30 mm
Wattage	18W/20W
LED Module	SMD LED 256pcs
Input voltage	100~240 / 120~277 VAC
Frequency	50/60 HZ
Color Temperature	3000 warm, 4000 neutral, 5000 day light , 6000 cool
CRI	3000k>75, 4000,5000,6000>70, >80 available on request
Luminous flux	1800lm / 2100lm
Illuminance 1M	385 lux /435lux
Weight	365 g
Body material	6063 reinforced aluminum alloy with surface treatment
Cover material	Optical grade polycarbonate with Japanese made diffuser bead
Certification	CE FCC RoHS UL cUL CNS

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

Q: The top LED lights always burn the bulb in series: If it is a constant current drive, there is a special adjustment element to adjust the current.

Q: Led full-color light string and how to control wiring: Three line full color exposure lamp data signal two, the controller needs two wire negative electrode control, GND signal connected to the DAT surface

Q: How do you connect the LED lights?: A series of even parallel. Are not clear, boss, you want to use LED do what?There is a gap, which is the positive pole of the LED (usually the long foot is short and the foot is negative)

Q: The number of lights in the LED string: Different LED number of LED light band price is different, and this is also to distinguish LED lamp belt price is an important factor.

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: Rated voltage of LED lamp string: When normal luminescence, each LED voltage drop is more than 2 volts, the current is about 15mA, to use 220V direct current should be connected in series with nearly one hundred led, or in the LED circuit series resistance, so that the series circuit current is about 15ma.

Q: What is the connection distance of the LED light string?Be specific: LED light string connection distance: in general, the 3528 series of LED lights belt, its connection distance is the longest 20 meters, 5050 series of LED lights string, the longest connection distance is 15 meters

Q: LED lights string broken, how to repair?: LED lights string broken: you can check one by one, which is bad, which change.

Q: How much is the voltage across the 20 LED lamps in series?: LED lighting general LED lamp belt voltage, conventional specifications are 12 volts and 24 volts, if it is 12 volts, that voltage is 420 volts, if it is 24 volts, that is 840 Volts

Q: What are the power connections for the LED light string?: LED lamp string power connection method: LED light string, general voltage is DC 12V, so need to use switching power supply, power supply according to the size of LED light string and connection length to decide

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