YUANNENGJI There are many models and specifications of LED chips:
Der er for mange modeller af LED-chips, inklusive direkte indsættelsestype, SMD type, and high-power lamp bead type. The lamp bead current ranges from tens of milliamperes to several amperes, og spændingen er relativt konsistent, mostly above three volts, so there is no way to generalize.
Roughly speaking, they are divided into direct-insert type, SMD type, and piranha type according to the package, and divided into high, medium, and low power according to the power.
High-power white LED (såsom CREEs XML-T6) har en enkelt effekt på 10W, en spænding på 3,3v, og en strøm på 3A. Low-power red LED (såsom den almindelige 5MM direkte indstikstype) har en spænding på 2v og en strøm på 15mA. If you really can’t find the component model, you can infer the working voltage based on the light color:
Red light 1.8~2.2v
Yellow light 2.0~2.4v
Green light 2.2~2.8v
Blue and white light 2.8~3.5v
SMD package is 0805, 1206 and other low-power tubes, the working voltage is 10mA, men der er undtagelser;
SMD package is 3014, 3528, 3535 and other low-power tubes, the working current is 20~50mA, men der er undtagelser;
SMD package is 5050, 5060, 5630 and other medium-power tubes, the working current is 50~150mA, men der er undtagelser;
High-power LED'er er alle SMD-pakker, and the parameters of different brands and company series vary greatly; but the general working current of the nominal 1W is 350mA
Low-power direct-plug LED chip are generally divided into models according to diameter, 3mm 4mm 5mm 8mm 10mm 12mm, regardless of the diameter, the working voltage and working current are the same, color classification: 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
LED chips have a variety of specifications
1. 0.06W, spænding 2,5-3,5V, strøm 20mA.
2. 0.5W, spænding 2,5-3,77V, strøm 150mA.
3, 1W, spænding 2,79-3,99V, strøm 350mA.
4, 3W, spænding 3,05-4,47V, strøm 700mA.
5, 5W, spænding 3,16-4,88V, nuværende 1000mA.
1W lamp bead current: 320-350mA, the driver generally chooses 300mA current, and the chip size is 30mil, 35mil, 40mil, and 45mil.
3W lamp bead current: 700mA, the driver generally chooses 600mA, and the chip size is 45mil.
1W and 3W voltages are between 3.0-3.6V, and 3.2-3.4V is better.
As for a single 5W chip, the chip is generally more than 50mil.
LED chip for general lighting are 0.5w-5w, and the operating voltage is around 3-3.2V.
What are the parameters of 1-watt white light LED lamp beads? We generally design them to be 3.6—4.2V, 0.2—0.3A. There are many 15W lamp beads now, you can refer to them. For eksempel, cree mce, cree t6.
Voltage: 3.2-3.6v, current 300-350ma, luminous flux: 100-120 lumens, color temperature: white light 6000-7000K.
Methods to identify LED chips are:
1. Se på lysstyrken, altså, lysstyrken, når kørestrømmen er 350mA og spændingen er mellem 3,0-3,6V. Jo højere jo bedre.
2. Look at the chip brand. There are many LED chip brands on the market. It is very important to choose a reliable chip company
3. Look at BIN, altså, color temperature partition and voltage BIN, the finer the better.
4. Look at attenuation. Aldringstest er påkrævet. Jo mindre lysdæmpning, jo bedre.
5. Se på den faktiske anvendelse, such as: det er godt at have egnede og billige linser og aluminiumsunderlag på markedet. If the lens and aluminum substrate need to be molded, the investment will be large. 1W høj effekt, strøm: 350ma, spænding: 2.8-4.0V lysstyrke: 80-130LM farvetemperatur: 3000-12000K.