1-5M Fairy Light CR2032 Battery Powered LED Mini Christmas

LED lamp string is made of lamp beads, circuit boards and PVC materials.
The name of the LED light string is LED light strip, which is called LED Strip in English. The product is like a strip in shape. In addition, the main component of the product is LED, so the name comes out. As for the light bar, it is estimated that it is formed by taking its shape and adding the original.
Forming process
summary
0603, 0805, 1210 and 5050 refer to the size (inch/metric) of the LED, which is the light-emitting element used on the LED lamp band. The following is a detailed introduction to these specifications:
0603
When converted to metric system, it is 1005, which means that the length of LED element is 1.0mm and the width is 0.5mm. The industry abbreviation is 1005, which is called 0603 in English
0805
When converted to metric system, it is 2125, which means that the length of LED element is 2.0mm, the width is 1.25mm, and the industry abbreviation is 2125. The British system is called 0805
one thousand two hundred and ten
The conversion to metric system is 3528, which means that the length of LED element is 3.5mm and the width is 2.8mm. The industry abbreviation is 3528, which is 1210 in English
five thousand and fifty
This is a metric name, which means that the length and width of the LED element are 5.0mm and 5.0mm respectively. Industry abbreviation 5050
15 lights, 30 lights and 60 lights refer to the number of LED elements welded on each meter length of the LED light strip. Generally speaking, the 1210 light strip has 60 LEDs per meter, the 5050 light strip has 30 LEDs per meter, and the special one has 60 LEDs per meter. The price of LED light strips varies with the number of LEDs, which is also an important factor to distinguish the price of LED light strips.
It refers to heating a standard black body, and when the temperature rises to a certain extent, the color starts to change gradually from dark red light red orange yellow white blue. When the color of a light source is the same as that of the black body, we call the absolute temperature of the black body at that time the color temperature of the light source.
Generally speaking, the color temperature is not an indicator for evaluating LED light strips, but many foreign customers will make a special requirement because of the use environment.
The light with the color temperature of the light source:
The color temperature is below 3300K, and the light color is reddish to give a warm feeling; There is a steady atmosphere and a warm feeling. It is generally called warm color temperature.
The color temperature is in the middle of 3000-6000K, so people have no obvious visual psychological effect under this color tone, and have a pleasant feeling; So it is called "neutral" color temperature
The color temperature exceeds 6000K, and the light color is blue, giving a cold feeling. It is generally called cold color temperature.