1, LED size: 0603, 0805, 1210, 5050 refers to the LED light emitting elements used on the LED belt ----LED size (imperial/metric), the following is a detailed description of these specifications:

0603: Converted to the metric system is 1005, that is, the length of the LED component is 1.0mm, the width is 0.5mm. The industry is referred to as 1005, and the British name is 0603.

0805: Converted to the metric system is 2125, that is, the length of the LED component is 2.0mm, the width is 1.25mm. The industry is short for 2125, and the British name is 0805.

1210: Converted to the metric system is 3528, that is, the length of the LED component is 3.5mm, the width is 2.8mm. The industry is known as 3528, or 1210 in English.

5050: This is the metric name, that is, the length of the LED component is 5.0mm, the width is 5.0mm. Industry abbreviation 5050.

Number of LED lights: 15 lights, 30 lights, 60 lights refers to the number of LED components welded on the LED strip per meter length, generally speaking, the 1210 specification strip is 60 LED per meter, 5050 specification strip is 30 LED per meter, and the special has 60 LED per meter. The price of LED strips with different LED quantities is different, which is also an important factor to distinguish the price of LED strips.

Luminous intensity, commonly used unit is mcd, that is, millicandra. The higher the value, the greater the luminous intensity, that is, the brighter. This is an important indicator to evaluate the brightness of the LED lamp belt, the higher the brightness requirements of the lamp belt the more expensive. This is because high-brightness LED chips are expensive, and the higher the brightness, the more difficult the package.

SMD components emit light at an Angle of 120 degrees. The greater the luminous Angle, the better the astigmatism effect, but relatively, the brightness of its luminous is correspondingly reduced. The light Angle is small, the intensity of the light is up, but the range of irradiation will be reduced. Therefore, another important indicator to evaluate the LED lamp belt is the luminous Angle. Now there are some bad manufacturers on the market, in order to improve the brightness of the light to earn higher profits, deliberately reduce the Angle of light, a little accidentally, you will buy such defective components.

The input voltage of the LED lamp belt is generally used as DC 12V, and some are 24V.