Q:How to connect the power supply when the LED lamp is energized? The search is to get a wire directly from two ends? Do you need to be able to distinguish positive and negative?

Well, there is no such thing as a positive negative, you can just put it on the shelf, and if it's unique, just plug it into the socket

Q:How to choose daylight lamp? What is the light bulb specification?

The principle is: when the switch is switched on, the power voltage is passed through the ballast and the lamp filament to the two poles of the regenerator. The voltage of 220 volts immediately disassociates the noble gases of the regenerator, producing glow discharge. The heat of the glow discharge heats up the bimetal plates, and the poles are in contact. The current flows through the ballast, the regenerator, and the two ends of the filament. The filament is quickly heated by the current and emits a lot of electrons. At this point, the voltage between the poles is zero because the regenerator is closed, the glow discharge disappears and the temperature in the tube decreases. The bimetal strip is automatically reset and is disconnected. At the moment of the disconnection, the current of the circuit is suddenly cut off, and the ballast generates a large self-inductance, which is applied to both ends of the tube with the power supply voltage. The large amount of electrons emitted when the filament is heated, under high voltage at both ends of the lamp, is moving at maximum speed from low voltage to high potential end. In the process of accelerating motion, the argon molecules in the collision tube are rapidly ionized. Argon is ionized by heat, which causes mercury to produce steam, and the mercury vapor is ionized and emits a strong ultraviolet light. In ultraviolet light, the phosphor powder in the tube walls emits near-white visible light.

Q:What is the 1.5-meter LEDT5 daylight lamp tube

In my experience, it should be industrial purposes, such as 1.2 meters tubes the effective length of exposure is not enough, but with a price on the high side, will have a 1.5 meters east east.

Q:The ledt8 lamp is used for the light bulb

The average LED T8 lamp is based on the number of lamps in the wattage, and the average light bulb is 0.5 w, and according to the wattage, you know how many lamps are there.

Q:How does the LED fluorescent lamp tube be fixed with the aluminum plate in the tube?

The person thinks still silicon fat + screw, but the screw is not easy to install, do not know the big man has the gao zhao4?

Q:What is the difference between the daylight lamp tube used in fishing steel and the normal lighting tube

Again, LED tube USES long life. LED can live up to 50,000 hours (without power), and the fluorescent tube (which does not contain power) can last 10,000 to 20,000 hours.

Q:Why don't leds and light bulbs adjust brightness by dimming switches

Dimmer switch is to adjust the output voltage, output voltage continuous variation between 0 ~ 220 v, but LED and lamp only between 180 v and 220 v to normal light, less than 180 v is not bright, so the light. The fluorescent light bulb is connected to the power supply quality of the grid, and cannot solve it.

Q:How many lumens is the T5 bulb of 18W

The fixed bar is still rolling. Let's try a VGA line, if I can't do that, that's the problem of the screen itself. Like screen drive or line problems, not the LCD panel itself.

Q:The energy-saving device installed on an old-fashioned daylight lamp is similar to the lighting in the university library, where lights are illuminated and the lights go out

Heilongjiang wanfang electric equipment co., LTD. Is one of the places where you can check the Internet for sale

Q:Can a fluorescent lamp electronic ballast be powered by an led

All right, but this is something that is familiar to electronic technology.