1, the requirement for lighting in the bathroom is not particularly high, and it is generally about 10 watt.
2, the kitchen needs enough brightness lighting, because it is necessary to cut vegetables and cook something, so 10-20w.
3, because the room needs to rest, so a little gentle 30 W will do.
4. The living room is the largest, which should be above 60W.
Led light
LED lamp is an electroluminescent semiconductor chip, which is solidified on the bracket with silver glue or white glue, and then the chip and the circuit board are connected with silver wire or gold wire, and the periphery is sealed with epoxy resin to protect the internal core wire. Finally, the shell is installed to make the led lamps have good seismic performance.
Difference between ordinary fluorescent lamp and LED lamp
Ordinary fluorescent lamp
There is a filament at each end of the fluorescent lamp, and the tube is filled with trace argon and thin mercury vapor. The inner wall of the lamp tube is coated with fluorescent powder, and the gas between the two filaments emits ultraviolet light when conducting electricity, so that the fluorescent powder emits soft visible light.
The working characteristics of fluorescent lamp: the lamp needs a high voltage at the beginning of ignition, and only a small current is allowed to pass during normal lighting. At this time, the voltage at both ends of the lamp is lower than the power supply voltage.
LED fluorescent lamp
Led fluorescent lamps are characterized by high quality, durability and energy saving, and the projection angle can be adjusted in a wide range. The brightness of 15W is equivalent to that of ordinary 40W fluorescent lamps. Resistant to high temperature, moisture, water and leakage. The working voltage is 1 10V and 220V, and the cover can be glass or PC. Lamp holders are the same as ordinary fluorescent lamps.
LED fluorescent lamp adopts the latest LED light source technology and digital appearance design, saving electricity by more than 70%. 12W LED fluorescent lamp has the same light intensity as 40W fluorescent lamp (used for ballast and upconverter, the actual power consumption of 36W fluorescent lamp is 42W to 44W). The life of LED fluorescent lamp is more than 10 times that of ordinary lamp, and it is almost maintenance-free, so it is not necessary to change the lamp, ballast and frequency converter frequently. Environment-friendly semiconductor electric light source has soft light and pure spectrum, which is beneficial to users' vision protection and health. The cold light source of 6000K gives people a cool feeling visually, and the humanized illumination difference design is more helpful to concentrate and improve efficiency.
Compared with ordinary fluorescent lamps, LED fluorescent lamps have the following advantages:
1, saving energy. 2, long-life LED lights. 3, good applicability, because a single LED is small, it can be made into any shape. 4. The response time is short, which is ns (nanosecond) level response time, while that of ordinary lamps is ms (millisecond) level response time. 5, environmental protection, no harmful metals, and easy recycling of waste. 6. Bright colors, pure luminous colors, narrow spectral range, and can be mixed into color or white light through three primary colors of red, green and blue.
Disadvantages: 1, expensive. 2. There is still a big gap between the universally achievable light efficiency and the theoretical light efficiency. 3. There is still a big gap between the achievable life and the theoretical life (10w hour). 4, there is still a certain calorific value. 5, light attenuation can be greatly reduced.
reference data
Baidu: /item/LED%E7%8 1%AF