Is the output of the circuit in the energy saving lamp AC or DC, and how many volts?

The circuit output in the energy-saving lamp is high-frequency AC - there are tens of kHz, which may not be used to drive the LED lamp, and it needs to be rectified before it can be used to drive the LED lamp, and the current is too small to drive the LED lamp.

The traditional electric light source, whether it is an incandescent lamp or a high- or low-pressure gas discharge lamp, is composed of a glass shell and a filament, through which electrical energy enters the bulb and is converted into light energy. The high-frequency induction lamp is to couple the high-frequency electromagnetic energy into the bulb in an inductive way, so that the gas in the bulb is ionized by an avalanche to form a plasma, and when the plasma excited atoms return to the ground state, they spontaneously emit 245nma ultraviolet light, and the phosphor on the inner wall of the bulb is excited by ultraviolet rays to emit visible light. High-frequency induction lamp is a new type of electric light source based on the combination of two well-known principles of fluorescent lamp gas discharge and high-frequency electromagnetic induction.

Because it does not have the necessary filament or electrode for conventional electric light sources, it is called an induction lamp; In general, the working frequency of high-frequency induction lamps used in low-pressure gas discharge lamps is, that is, the working frequency of high-frequency induction lamps is 56,000 times higher than that of ordinary incandescent lamps and inductive fluorescent lamps, metal halide lamps, high-pressure sodium lamps and other lamps used in daily use, and about 250 times higher than the working frequency (30 60kHz) of ordinary energy-saving lamps or electronic ballasts.

Energy saving: Compared with incandescent lamps, the energy saving is about 75%, and the luminous flux of 85W high-frequency induction lamp is roughly equivalent to that of 500W incandescent lamp; The 85W induction lamp can also replace the 170W metal halide lamp and the 250W high-pressure sodium lamp, and the comprehensive energy saving is greater than 70% under the same visual effect conditions. In the same amount, the use of induction lamps can reduce the current of the output circuit by more than four times, and the capacity of the transformer can be greatly reduced.

The output voltage of the CFB circuit board is about 140V to 160V.

Energy-saving lamps, also known as energy-saving bulbs, electronic bulbs, compact fluorescent lamps and integrated fluorescent lamps, refer to lighting equipment that combines fluorescent lamps and ballasts (stabilizers) into a whole. In 2008, the state launched the "green lighting" project, and urban and rural residents and enterprises enjoy a certain proportion of subsidies for the use of energy-saving lamps of winning enterprises. The promotion of energy-saving lamps is of great significance, however, the harm of waste energy-saving lamps to the environment has also attracted attention.

By the end of October 2012, the energy-saving promotion project has hundreds of millions of energy-saving lamps scrapped, each can pollute 180 tons of water and five or six acres of soil, the treatment of waste energy-saving lamps and the problem of the first cause of concern. Despite this, the demand for energy-saving lamps is still growing, especially in 2015.

The output voltage has two meanings:

1.When there is no load, the net output is the open-circuit voltage difference between the two ends of the circuit.

2.It is the pressure difference between the two ends of the output when there is a load.

The two are not the same, and the output values are not the same.

The output voltage of the CFB circuit board is about 140V to 160V.

Energy-saving lamps are lighting devices that combine fluorescent lamps and ballasts (ballasts) into a single unit. The energy-saving lamp adopts high-quality pure trichromatic phosphor tube, which has high light efficiency, small light attenuation, natural light, less power consumption, low heat generation, and color temperature of 2700K and 6400K, which is the best choice for lighting sources.

The peak voltage of the energy-saving lamp reaches more than 1000V when it is started, and the high-frequency voltage after lighting is more than 100V, and the frequency is 20kHz-25kHz. The ordinary multimeter is mainly aimed at the low-frequency voltage of about 50Hz, and the high-frequency measurement is not accurate.

Theoretically, it is 220 volts, but the peak of electricity consumption is less than the low peak is more than it, and the residential electricity is AC, of course, the energy-saving lamp is also AC.

Generally between 90 and 140 V, some measuring instruments are not suitable for measuring high frequency voltages, and it is understandable that very low voltages occur.

Hello dear, no. DC bulbs usually need to be connected directly to a DC power source to work properly, and if they are connected to an AC power source, they may not emit light properly. Because the circuit design of the DC bulb is based on the characteristics of changing the width of the DC to the DC current, if you use a power supply other than DC, it may lead to the power circuit can not be started or the operation is not normal Oh, in addition, the 4 volt voltage you mentioned is a relatively low voltage, generally lower than the normal working voltage range of the bulb, so it should be noted that the use of this voltage to connect the bulb can not work normally It should be noted that different models, The working voltage of DC bulbs from different manufacturers may be different, so you need to carefully check the product manual when using it to confirm the range of working voltage and the applicable scenario, so as to avoid safety risks and equipment damage caused by improper use.

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Alternating current refers to the current whose direction changes periodically over time, with an average current of zero in a cycle. Unlike direct current, which changes its direction over time, direct current does not change periodically. Usually the AC waveform is sinusoidal.

Alternating current can transmit electricity efficiently.

Can you use alternating current for DC bulbs with 4 volts.

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Can DC bulbs be used with alternating current 4 volt voltage: Yes, the bulb can be used with DC and AC. However, to ensure that the voltage is consistent, the 4V DC orange bulb should use alternating current and 4V power supply. The above is the answer for you Xiaoyan, thank you for your patience Oh <>

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Alternating current refers to the current whose direction changes periodically over time, with an average current of zero in a cycle. Unlike direct current, its direction changes over time, while direct current does not change periodically. Usually the AC waveform is sinusoidal.

AC Jianchun Electric can effectively transmit electricity.

Hello: V, 2W energy-saving lamp, its (active) current for the front socks: 2W 220V

2. Since the power factor of the 2W energy-saving lamp electric shirt destroyer ballast is not 1, the actual measured (apparent) current is larger.

3. If the power factor of the 2W energy-saving lamp is given, the apparent current can also be calculated.

First of all, let's understand the relationship between LED lamps and LED lamp beads, lamp beads are generally expressed as single, according to the different luminous colors of the lamp beads, the voltage is also different, usually the LED lamp beads that emit white light, the voltage is about 3V, and the lamp is generally composed of multiple lamp beads, the more the number, the higher the voltage, because the connection method of the lamp beads is more strings and more parallel, such as two strings together, etc.

The LED lamp has a small power, less lamp beads, and a lower voltage, as shown in the figure below, the voltage of 8 24W is 25 80V.

Therefore, under normal circumstances, as long as the voltage of the lamp is within the range of the output voltage of the driver, it will generally not burn.

The constant current source of 100 volts is added to the LED lamp beads that are connected in series by 25 (or more), and the average voltage falling on each lamp bead is 4 volts (and below), so it will not be burned.

Because the voltage of the Le D bead is 3 4 volts, multiple 3 4 volt lamp beads are connected in series, so that the voltage on each of them is very low, so he will not be burned out. Because the voltage of the Le D bead is 3 4 volts, multiple 3 4 volt lamp beads are connected in series, so that the voltage on each of them is very low, so he will not be burned out.

First of all, household LED bulbs are used in series with many small LED lamp beads, the voltage increases in series, a single driving voltage of 3 volts, 10 in series requires a 30 volt driving voltage, if it is 30 in series, it needs nearly 100 volts of driving voltage. At this time, it is basically the same as the voltage of the driver, and at the same time there is an important parameter is the current, if you want to burn the lamp beads, it must be the voltage and current together, any single item is not enough to burn the lamp beads, the constant current drive is reflected here, control its current, ensure that the current is not greater than the rated driving current of the lamp beads, so that even if the voltage has some errors, it is not enough to burn the lamp beads.