For a cottage of about 10 square meters, how many W led bulbs should be used?

In fact, according to the national standard GBJ133-90, the general activity area of the living room and bedroom only needs 20-50Lux, so it needs 400-1000 LM, which is equivalent to about 5W to 13W according to the actual light efficiency of ordinary LEDs on the market (75LM W). However, the above are the criteria for rest. If it's not a break, even if it's a bedside book, it's 75-150lux, what should I do?

Of course, it is combined with the table lamp. Referring to the JIS standard, the illumination of the living room and living room is 150Lux, and the luminous flux of 1500LM is required for 10 square rooms, while the general LED luminous efficiency is 80-100LM W, at least 15W or so LED bulbs are needed, and the highest power of LED bulbs on the market is 13W, so it is recommended to consider 15W LED ceiling lights. Please note that bulbs, ceiling lights, downlights vary.

My bathroom is 3 square meters, and I put two LED downlights, each 10W, and the brightness is relatively bright. I think it may be that the downlight is just shining downward, and the ceiling is dark, so it is not as bright as the bulb and ceiling light. <>

with LED lights.

About 15w is about the same. First of all, LED lighting fixtures, under the same lighting environmental conditions, should be achieved with fluorescent lamps.

For the same lighting effect, only half the power of a fluorescent lamp is usually required. That is, half the money. Secondly, for a 10-square-meter room, if fluorescent lights are usually used, the circle of about 28W is a ceiling lamp.

That's it. So with LED, it's about 15W, and finally, it depends on your specific installation height, what I said is generally in the case of a height of about 3m. As for the color temperature, whether you use 1 bulb or multiple bulbs in a 10-square-meter room, 9WLED bulbs are equivalent to the brightness of 20W energy-saving lamps.

Warm white can make the atmosphere of the home more warm, bedside lamps and so on as an auxiliary, in the cold environment to share happiness with the family.

Since it is a bedroom, there must be a table lamp. <>

1. Generally speaking, 12-18 watts are used for daily life.

2. If you are reading, studying or working, 24-30 watts is suitable.

1. LED light.

LED is the English light emitting diode (light-emitting diode.

Its basic structure is a piece of electroluminescent semiconductor material.

The chip, cured to the bracket with silver glue or white glue, then connected to the chip and the circuit board with silver or gold wire, and then surrounded by epoxy resin.

sealed, which plays the role of protecting the internal core, and finally installs the shell, so the LED light has good shock resistance. The application field involves the production of daily household appliances and machinery such as mobile phones, desk lamps, and home appliances.

2. Principle. A semiconductor wafer consists of two parts, one of which is a p-type semiconductor.

Holes dominate in it, and at the other end are n-type semiconductors.

It's mostly electrons here. But when these two semiconductors are connected, a p-n junction is formed between them. When the current is applied to the wafer through the wire, the electrons will be pushed to the p-region, where the electrons will recombine with the holes, and then the energy will be emitted in the form of photons, which is the principle of LED light emitting.

The wavelength of light, which is the color of light, is determined by the material that forms the p-n junction.

Hello, 12 to 18 watt LED lights will do.

This is not only based on wattage, but also on the luminous flux and color temperature of the lamp.

Luminous efficiency = luminous flux electrical power (unit: lm w); Illuminance = luminous flux area (in lx).

Generally, the color temperature of the light source is divided into three categories: warm light: the color temperature of warm light is below 3300K; Warm white light: also known as intermediate color, its color temperature is between 3300K and 5300K; Cool light: also known as daylight color, its color temperature is above 5300K.

So even if the wattage is the same, as long as the luminous flux or color temperature is different, then the illumination of the lamp is also different.

See what you're going to do? Generally, 12---18 watts are used in daily life, and if the power is larger for reading and studying or working, 24---30 watts is appropriate. According to the JIS standard, the illumination of the living room and living room is 150LUX, and the luminous flux of 1500LM is required for a 10-square-meter room, while the general LED luminous efficiency is 80-100LM W, at least about 15W LED lights are required.

12-15W LED ceiling light can meet the general lighting needs.

It is reasonable to use 10 watts, and if you like to be bright, you can use 12-15 watts.

Such a small 10W proper 100% illumination.