1, LED ceiling light introduction
The LED ceiling lamp is a lamp using LED as a light source. Because the upper portion of the LED ceiling lamp is installed in the room, it is close to the roof installation, like an adsorption on the roof, called the LED ceiling lamp.
The LED ceiling lamp has the characteristics of high light efficiency, less power consumption, long life, easy control, maintenance-free, safe and environmental protection. Generally, the diameter is about 200mm LED ceiling lamp, which is suitable for use in the bathroom. The LED ceiling lamp is loaded with a diameter of 400 mm, it is suitable for the top of a room that is not less than 16 m2. LED light sources can achieve LED cement tuning, color, colorful, colorful, low loss, low energy consumption, green, colorful, low loss, low energy consumption, green. The LED ceiling lamp is a lighting that is adsorbed or embedded on the roof ceiling. It is a main body lighting in the room, a commonly used lighting in a variety of places such as family, office, entertainment. The shape of the LED ceiling lamp is shown below.
The most commonly used LED ceiling lamps include 12W, 18W, 24W, 30W, 36W, 40W, 48W, 54W, 64W, 72W, 84W, 108W.
Identifying the LED ceiling lamp has no frequency flash, can be used with mobile phone camera, with a mobile phone camera to observe the light. This method can only detect if the LED light is striped, and the frequency flash frequency cannot be determined. The more obvious the general image bellows, the smaller the frequency flash frequency, the worse the frequency flashes.
2, LED ceiling lamp circuit schematic
At present, the monochrome LED ceiling lamp is carried out by SMD5730 (0.5W) or SMD5630 (0.5W) as a light source, and is carried out in a manner having a number of strings = power supply ÷ 1, and its current is 270 mA. ED ceiling lamp aluminum substrate design is shown in the following table.
At present, the LED cement base has a two-color light board as shown in the following figure.
The two-color light board has two color thermal lamps, fitting on the upper dimming, a power supply of the toner temperature, can achieve adjustment brightness, and color temperature. Instead of the LED ceiling lamp plate of the traditional H tube, 310 × 15 mm2 (6w), 410 × 15 mm 2 (6W, 8W), 520 × 15 mm 2 (8W, 9W), 534 × 19 mm 2 (9W, two-color). The LED dimming toner lamp lamp has 8W, 12W, 16W, 18W, 24W, 36W, 48W, 64W, 72W, etc. At present, the LED ceiling lamp board also has 2.4G non-extreme dimming tonal temperature (two-color) plus color light source (RGB).
3. Introduction to LED CCD Power Source
LED ceiling lamp power supply is 2.4G remote control dimming (switch segment dimming, remote control temperature), open protection, short circuit protection, overload protection, and over-temperature protection remote control, self-control, self With night light function. 2.4G high-frequency wireless remote control, has the characteristics of low power consumption, high transmission distance, strong anti-interference ability, high air communication rate.
LED ceiling lamp 2.4G remote control dimming power supply is divided into single, double road, etc., its power is 18-28W, 28-36W, 40-54W, 60-84W. You can achieve a non-grade dimming from 0.1% -100%, smooth dimming, no shaking (stepless dimming). Light from warm light, natural light, white light, color temperature from 2700k-6500K free adjustment (stepless toner), as shown below.
Single LED ceiling lamp 2.4G remote dimming toner power supply, the number of strings is power supply ÷ 1, all the way three-wire output, the current is about 135mA. Such as 36W single LED ceiling lamp, the number of strings is 36 strings, two color temperatures are 2 and the three-wire output (all the way 3p terminal line, the intermediate is a common pole), as shown in the figure below.
Dual LED ceiling lamp 2.4G remote dimming toner power supply, its strings are power power ÷ 2, two three-wire output, and its current is about 270mA. Such as 84W dual LED ceiling lamp, the number of strings is 42 strings, two color temperatures are 2 and a total of two three-output output (two 3p terminal lines, the intermediate is a common pole), as shown in the figure above.
2.4G Remote Transfer Templates The power supply can be used to connect the secondary mode, and the number of watts can be placed casually. The number of watts can be extended from 12W to 200W.