Q:One of the ten famous brands in LED lamp have? How to differentiate between light and guide lights

LED lamp ten big brands have the gen heng lighting of the south China sea, foshan lighting, leishi, etc.

Q:Led12V3W's radio lamp is ac or dc

Dc. LED lights, scientific name is light-emitting diodes (leds), are the dc. led12V3W Means, 3 w power leds, power supply is 12 v dc supply. Is answered.

Q:1. I bought the LED tube light, there is some light is driven with constant current, while the input voltage is 220 v, but tend to be low voltage dc output voltage, there are some inserts the 220 v can directly, didn't see any of the constant current drive, so is built into the still say there are two kinds of LED tube light, is a kind of the working voltage of the dc low voltage, a kind of ac 220 v. 2. About the LED tube light, dimmer, I already according to one of the LED constant current drive found the corresponding LED light, that if I was the LED directly to the adjustable light can directly replace the LED constant current drive.

Domestic outfit LED tube lights are currently on the market is 12-24 dc drive, just have a plenty of built-in drivers, connected directly to the 220 v power supply, have a plenty of needs to cooperate with the power supply. As long as the light is 12-24 220 v input output can do out of driving

Q:What is the input voltage of the mr16 led?

The input voltage of dc DC12V, 24 v. LED lamp is to use leds as a light source to shoot the light. Traditional lamp used more halogen lamp, luminous efficiency is lower, more power consumption and environment temperature rise by illuminate, service life is short

Q:30 square meters, 3.1 meters high clothing store lighting need how many watts of led lights

Energy-saving lamps Since the lighting effects Until their satisfaction Light can change back Won't you tell me the website to buy it As long as the heart is not as difficult as can be

Q:Motorcycle lens and the LED lamp can be installed at the same time, and shall not affect the circuit?

Can gm is 12 v, so long as you don't pick up ballast line can be connected in series, because you is the 12 v battery

Q:Electric rail, shoot the light will be bright

Incandescent light conversion efficiency is only 15-20%. This is calculated by photosynthetic efficiency ratios, and with your LED lights itself quality also has a lot to do, to pass the instrument to test your how much is 300 w LED luminous flux, can be obtained. However, single lamp of 300 w LED, I have not seen in the market. The other said the search of integration

Q:Why turn off the switch and dim the led lamp

A common cause of ED lights flashing and the solution: After turn off the power supply LED lights flashing, check the switch control is zero. If the correct wiring may refer to the following methods: The human eye can generally perceived frequency of 70 Hz light flashing, higher than the frequency does not perceive. So in LED lighting applications, if the pulse signal frequency is lower than 70 Hz low frequency component, the human eye will feel the shine. In the specific application, of course, there are many factors may lead to LED lights flashing. For example, in an off-line low power LED lighting applications, a common power supply topology structure type is to isolate the flyback topology. In accordance with the "energy star" solid-state lighting standards from line 8 w LED drive GreenPoint ? reference design as an example, as a result of the flyback voltage stabilizer sine square wave power conversion did not provide primary offset constant energy, dynamic self-supply (DSS) circuit may activate and trigger light flashing. To avoid this problem, must enable primary bias to partial discharge in each half cycle, accordingly, need to choose appropriate constitute the bias circuit of capacitance and resistance value.

Q:The led lamp is necessary to use good

Household LED must choose good, because now the LED quality too, with the bad LED to the injury of the eyes is very big

Q:LED to shoot the light flash when open, a period of time is normal

The most direct reason is that the voltage instability, it is possible that the LED quality has a problem