How much power does a 13W energy saving lamp consume in an hour?

13W energy-saving lamp.

One hour consumes kilowatt-hours of electricity.

1kWh = 1 kWh, 1 kWh of equipment consumes 1 kWh of electricity for 1 hour of operation. Formula: Electrical energy consumed = power time.

According to this formula: electrical energy consumed = kWh.

Degree. <>

Consumes kilowatt-hours of electricity.

Problem Solving Idea: Electricity Consumed = Power Time.

According to this formula: electrical energy consumed = kWh = degrees.

Theoretically, it consumes electricity per hour. The actual power consumption is 40 to 50 percent less than the theoretical value.

1. One kilowatt-hour of electricity is 1000 watt-hours, and 36-watt energy-saving lamps cost one hour.

2. Kilowatt-hour is what is usually called "degree", which is the unit of electrical work. Watts are the unit of power. If you multiply the power by a time, then this result is work. Symbol: kw h

1 kWh = 1 kWh * hour That is, a 1000 watt load consumes 1 kWh of electricity for 1 hour of operation.

Then a load of 36 watts consumes power for 1 hour.

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.

W energy-saving lamp U-shaped ** is 20 yuan.

2. Usually 1000 watts consume one kilowatt-hour of electricity, 36w is divided by 36 by 1000 times the number of hours 16 is equal to the kilowatt-hour electricity, energy-saving lamps can generally be used for 5,000 to 10,000 hours, in order to support the use of energy-saving lamps for environmental protection.

The power consumption of the energy-saving lamp with W brightness is about 20W, and the power consumption of the 30W fluorescent lamp including the inductor ballast is about 35W.

Formula: 1 kWh = 1 kWh.

That is to say, a load of 1000 watts consumes 1 kWh of power for 1 hour of operation.

Then a load of 36 watts consumes power for 1 hour.

2 16 kWh.

3W energy-saving lamps are used 24 hours a day, calculated as 30 days a month, and use 2 16 kWh of electricity. Calculation method: 3w 24h 30 0 001 2 16 kWh.

In daily life, kilowatts are used as units, and the unit is converted to 1 kilowatt to 1000 watts; 1 MW 1000 kW.

A 14W bulb is used for 1 hour a day, and the electricity consumed is 14 watts, which is 365 days a year, and 14 365 5110 watts, and the electricity consumption in a year is kilowatt-hour.

Classification of circuit functions:

1. Control electrical appliances: including contactors, switch appliances, control relays, master electrical appliances, etc. It mainly plays a controlling and converting role in the circuit;

2. Protection electrical appliances: including fuses, thermal relays, overcurrent relays, undervoltage relays, overvoltage relays, etc., which play a protective role in the circuit.

Functional classification: 1. Electrical appliances used to make and break circuits, such as contactors, knife switches, load switches, isolation switches, circuit breakers, etc.;

2. Electrical appliances used for control circuits, such as electromagnetic starters, auto-decompression starters, rheostats, control relays, etc.;

3. Electrical appliances used to switch circuits, such as transfer switches, master electrical appliances, etc.;

4. Electrical appliances used to detect circuit coefficients, such as transformers, sensors, etc.;

5. Electrical appliances used to protect circuits, such as fuses, circuit breakers, lightning arresters, etc.

kWh 40W energy-saving lamp, turned on for 12 hours a day, consumes kilowatt-hours of electricity in a month, that is, kilowatt-hours of electricity.

Household 40W energy-saving lamps, which are turned on for 12 hours a day, consume kilowatt hours of electricity in a month).

The calculation idea is dusty, which can be calculated directly from the question:

40*12*30=14400wh=

The calculation formula is: electricity consumption (kW) Power (kW) Service time (hours) Energy-saving lamps are only brighter at the same power, and the power is fixed. A 40W electrical appliance is one kilowatt-hour of electricity for 25 hours, so a total of 30 days of electricity is needed in a month.

The actual ratio of the brigade is slightly higher. 15 degrees expected.

1 degree = 1kWh, your two lights are a total of 165W, calculated as 200W, working 24 hours a day, that is, that is, the kWh, we calculate the kWh. If you are 30 days a month, the electricity consumed by the lamp is only 30*, which is 15 kilowatt-hours of electricity.

The power of energy-saving lamps is generally about 15W, even if it is used for 6 hours a day, 15*6*30=2700W, that is, kWh.

40W of power, theoretically used for one hour。1 kW = KW H, that is, the electricity consumption of 1000W electrical appliances working for one hour is one kilowatt-hour, if the power is indeed 40W, theoretically it is 25 hours to one kilowatt-hour. But in real life, with 40W of power, one kilowatt-hour of electricity takes less than 25 hours.

A 40-watt light bulb consumes 24 hours of electricity, but now there is a time-of-use discount, and the electricity bill is half price from 10 p.m. to 6 a.m. Therefore, you don't have to pay the electricity bill for the kilowatt-hour of electricity, but only pay the electricity bill for the kilowatt-hour of electricity.

In the process of choosing lamps and lanterns, you must pay attention to the following points:

The first is the safety of lamps and lanterns, in the choice of lamps and lanterns can not be blindly cheap, but to look at the quality of lamps and lanterns, check whether the lamps and lanterns warranty, certificate is complete. Sometimes the most expensive isn't necessarily the best, but what is too cheap is necessarily bad.

Many cheap lamps and lanterns are not of good quality, often with endless hidden dangers, and once a fire occurs, the consequences are unimaginable. Secondly, in the selection of lamps and lanterns, we should pay attention to the consistency of style. The color, shape and style of the lamps and lanterns must be commensurate with the style of the interior decoration and furniture, and echo each other.

The lamps and lanterns that are not real in China are not only not icing on the cake, but add to the snake. In the choice of color of lamps and lanterns, in addition to matching the indoor color tone, of course, you can also choose according to personal preferences. In particular, the color of the lampshade plays a great role in the atmosphere.

The size, type and amount of lamps and lanterns should be coordinated with the size of the living space, the total area, the indoor height and other conditions.