Can I use a 45W energy saving lamp with a power of 25W and a voltage of 220V for the desk lamp I bou

If the table lamp is a 25W incandescent lamp, a 45W energy-saving lamp can be used. If it is a 25wu type energy-saving lamp, you cannot use a 45W energy-saving lamp.

Different lamps and lanterns due to different power factors, under the same power, the rated current will be different, 45W energy-saving lamp, according to the power factor calculation, the rated current is 45;

Suppose your original lamp is an incandescent lamp with a power factor of 1, the rated current is 25 220=;

That is to say, after you change to a 45W energy-saving lamp, the current will be less than 4 times greater than the original lamp, but I don't think it will have much impact, because the minimum specification of the wire is a square millimeter, and the rated current carrying capacity is about 5A, so the table lamp wire can withstand 45W energy-saving lamps, of course, in addition to the wire line, there are some other connectors, such as switches, lamp heads, etc. But in general, for lamps below 100w, the current is too small, there will not be much of a problem, and the owner also said that there is no problem. And how many more years do you plan to make a table lamp?

In addition, no matter how you change it, it will not affect the bulb, but only the rest of the table lamp.

The power of the desk lamp 25W refers to the power consumption of your desk lamp, that is, the point will consume electricity for 1 hour, of course, at the same time, the wire equipped with the lamp is usually selected according to this capacity, if you have to use a 45W bulb (whether it is an energy-saving lamp, the power he consumes is 45W, but if it is an energy-saving lamp 45W, it will be very bright), there may be a risk of heating the power supply line, or even burning the line, of course, the general line is still considered to have rich ability, Moreover, the 45W you use is a small dosage compared to the 220V voltage, and it is unlikely that the wire will be burned. This usage has no direct impact on the life of the bulb, but it is a small horse-drawn cart for the life of the table lamp, and it will definitely have an impact.

Use kilowatt-hours of electricity.

According to the title, the power of the energy-saving lamp is 35 watts, that is, 35w=, and the electricity consumption time is one day, that is, 24h.

According to the formula: electricity consumption = power * electricity duration, that is, kilowatt-hours, kilowatt-hours is what is usually called "degree", is the unit of electric work, symbol: kw·h, the calculation formula is power multiplied by time.

Suppose the power of a power-hungry device is 2500 watts, that is, its power consumption in one hour is kilowatt-hours, which is one hour of electricity.

Then kilowatt-hours = kWh, so 35W energy-saving lamps use kWh of electricity for a day (24 hours).

23 watt energy-saving lamps can be used for home lampholders. The lumens per watt of normal incandescent lamps are: 10--15lm The lumens per watt of energy-saving lamps are:

The pure three primary colors are 45--60lm, and the mixed powder is 25--35lm Good energy-saving lamps can be converted according to 1:5, and the ordinary ones on the market are better converted according to 1:2.

It can be calculated that energy-saving lamps are 80% energy-saving compared to incandescent lampsSo the power value is equivalent to 20% of an incandescent lampSo replace the power of the incandescent bulb in the finch cavity.

23/，1.If there is only one lamp head in an room, 11---22 watts are generally used, and the largest is 40w energy-saving or dust lamp. It is necessary to buy energy-saving lamps of famous brands to ensure quality and brightness.

Different people have different parameters for brightness due to their own eyesight problems. If it is myopic and elderly, the brightness should be slightly brighter.

2.Or first, you need to know the size of the bedroom; Secondly, it is necessary to understand what the brightness (luminous flux) of a qualified energy-saving lamp is. A qualified energy-saving lamp should be 5 times brighter than an incandescent lamp.

That is, if you usually use a 100W incandescent lamp in the bedroom, generally you only use a 20W energy-saving lamp, such as using two 100W incandescent lamps, choose a 40W energy-saving lamp. If 7 lamp heads are to be lit, then 7 7W or 5W energy-saving lamps can also be installed. It mainly depends on the size of the bedroom, as long as it is bright enough.

kWh. 25 watts multiplied by 360 seconds multiplied by 24 hours = 2,160,000 joules of electricity.

Electronic energy-saving lamps are mainly heated by ballast to the lamp filament, at a temperature of about 1160K, the filament begins to emit electrons (fixed on the filament coated with some electronic powder) electron collision argon atom elastic collision, argon atom collision, energy and impact mercury atom after absorbing energy, transition ionization;

The temperature of the filament is about 1160K, which is lower than the working temperature of the incandescent lamp 2200K 2700K, so its life is greatly increased to more than 8000 hours, and because it does not have the current thermal effect of the incandescent lamp, it can reach 60 (lm) lumens per watt.

Summary. Hello! Energy-saving lamps 20W, 45W, 65W, 85W are equivalent to incandescent lamps 60W, 100W, 350W, 425W (watts) or so. 3W LED = 8W CFL (Energy Saving Lamp) = 25W Incandescent Lamp.

Energy-saving lamps 20W, 45W, 65W, 85W are equivalent to how many watts of incandescent lamps.

Hello! Energy-saving socks answer lamp 20W, 45W, 65W, 85W is equivalent to incandescent lamp 60W, 100W, 350W, 425W (watt) or so. 3W LED=8W CFL (Fiber Saving Hole Energy Lamp) = 25W Incandescent Lamp.

What is the 45 W of energy-saving lamps.

Hello! The brightness of LED lamps is 80 lm w, generally 50-70 lm w, incandescent lamps are 10-15 lm w, energy-saving lamps are 50-80 lm w, that is, Yinchi said that 1W LED lamps are equivalent to about 5W incandescent lamps, which are similar to Jiefeng sedan Li Neng lamps. Fanji's 45W energy-saving lamp LED is equivalent to an incandescent lamp of about 225W.

24V lighting is usually used in places where a safe voltage is required, and it is not considered that it will cost electricity. For example, if the lamps are of the same type and are powered by AC power, a 24V100W lamp will actually consume more electricity than a 220V100W lamp.

The reasons are as follows: first of all, the power supply, AC 24V must be converted with mains, and there will definitely be energy loss when converted. Secondly, the power is the same, and the lower the voltage, the greater the current will definitely be.

In reality, there is such a thing as wire loss. The reason why the high-voltage line uses a steel core aluminum cable to transmit hundreds of kilometers of distance, and the loss can still be within the allowable range is because the current is very small. Changing to 24v, connecting a light bulb to the next tower, whether it can be lit is a question.