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How to Choose the LED Lamp Bead of Flashlight?

1. There are many types of LED lamp beads: there are too many models of LED lamp beads, there are direct insertions and patch types, as well as high -power lamp beads. , The voltage is relatively consistent, most of them are at three o'clock. No way to talk about. Roughly speaking, if the packaging method can be divided into direct insertion, patch, and people, and the power can be said to be divided into large, medium and small power. High-power white light LED (such as CREE's XML-T6) single power has reached 10W, the voltage is 3.3V current 3A, the small power red light LED (such as the common 5mm direct insertion) voltage 2V, the current 15 mAh 15 mAh. If you can't find the component model, you can infer the working voltage according to the light color: red light 1.8 2.2V, yellow light 2.0 2.4V, green light 2.2 2.8V, blue light and white light 2.8 3.5V. Patch packaging is small power tubes such as 0805, 1506, and the working current is generally 10 mAh, but there are exceptions; small power tubes such as 3014, 3528, 3535 are encapsulated. Except; Patch packaging is 5050, 5060, 5630 and other medium power tube. The working current is generally 50 150 mAh, but there are exceptions; high -power LEDs are all packaged, and different series parameters of different brands of each company are very different. ;. Small -power direct -inserted LED lamp beads are generally divided in diameter, 3mm, 4mm, 5mm, 8mm, 10mm 12mm. Regardless of the diameter, its working voltage and working current are the same. The color can be divided into: red light, yellow light 1.7--2.1V, white light, blue light, warm white light, pink light, purple light 2.8-3.6V, green light 2.6-3.4V. 2. There are many specifications of LED lamp beads, which are divided into: 1, 0.06W, the voltage is 2.5-3.5V, the current is 20mA. 2. 0.5W, the voltage is 2.5-3.77V, and the current is 150mA. 3, 1W, the voltage is 2.79-3.99V, the current is 350mA. 4, 3W, the voltage is 3.05-4.47V, the current is 700mA. 5, 5W, the voltage is 3.16-4.88V, the current is 1000mA. The current of the lamp bead 1W: 320-350mA, the selection driver is generally selected 300mA current, the chip size is 30mil, 35mil, 40mil, 45mil, 45mil. The current of the lamp bead 3W: 700mA, the driver is generally 600mA, the chip size is 45mil. 1W 3W voltage is between 3.0-3.6V, a better 3.2-3.4V. The LED lamp beads used for lighting are all available from 0.5W-5W. 电压3.2-3.6v电流300-350ma光通量100-120流明色温白光6000-7000K 三区别优劣LED手电筒灯珠的方法如下 1.看亮度,即在350mA的驱动电流 What is the brightness when the voltage is between 3.0-3.6V?. 2. Looking at the chip brand and size, the brands include Nichia, Cree, Purieo, Xu Ming, Skinning, New Century, etc., the better, the bigger the chip, the better the chip. 3. Look at the bin, that is, the color temperature partition and the voltage division BIN, the thinner the better. 4. Look at attenuation, you need to do aging testing. The smaller the light decay, the better. 5. Looking at the actual application, such as comparison: the market has appropriate and cheap lenses, aluminum substrates, just fine, lens and aluminum substrates need to open the mold, 1W high power, current: 350mA, voltage: 2.8- 4.0V brightness: 80-130LM color temperature: 3000-12000K. Professional manufacture of various LED patch lamp beads, complete specifications, welcome to consult our customer service!

How to Choose the LED Lamp Bead of Flashlight? 1

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