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What is the principle used in SMD LED lamp, should pay attention to what the problem?
- LED installation method 1, don't install the LED pin in 2, under the condition of deformation in printed circuit board when installing LED, circuit board hole center distance and LED pin center spacing should be the same, if the hole spacing will make the lamp feet have residual stress and welding...s
Patch LED beads can be bought in what place?
- SMD LED lamp is now very popular, mainly because of long service life, but also rarely appear dead lights or dark, but there are many defects exists
What does "1210" mean in patch LED?
- 1210 refers to the lamp specifications.LED common lamp specifications and parameters of patch0603, 0805, 1210, 3528, 5050 refers to the LED lamp belt, often used in light-emitting components ----LED size (English / Metric) name, for example, 0603 refers to the length of 0.06 inches, width of 0.03 inches. But note that the 3528 and 5050 units are metrics
LED light SMD LED package in what form, trouble you under the guidance of...
- The LED chip has bumps and is welded to the PCB board using FLIP CHIP to packaging technology.LED is English light emitting diode (light emitting diode) abbreviation, its basic structure is a electroluminescent semiconductor chip light emitting materials, with silver glue or glue curing to the bracket, connecting a chip and a circuit board and then with silver or gold, then sealed with epoxy resin around, to protect the internal core role finally, the installation shell, so the seismic performance of LED lamp is good. Field of application involves mobile phones, desk lamps, household appliances and other daily household electrical appliances and machinery production.s
How to detect LED SMD beads
- The output voltage of the digital clock diode file is not high, generally below 2.5V, so the measurement of LED lamp does not work, the best way is to external electrical measurement. If there are a lot of beads to measure it, can take a constant current power measurement.s
Patch LED features
- The seismic resistance, high reliability, low operation cost system.It is easy to small, thin, lightweight, easy to shape without restrictions, made all kinds of application.s
Welding method and notice of SMT LED
- The peak reflow temperature: 260 degrees or below this temperature. (surface temperature) 2 temperature over 210 DEG C required time: 30 seconds or less than this time. 3 reflow times: no more than two times. 4 after reflow, LED needs to be cooled to room temperature before contact with colloid.s
What does patch LED light mean?
- Look, what's your product?. Some products have volume requirements, straight line will be relatively large, patches of small affixed to the circuit board does not occupy space, if only the light source, it may be an ordinary light bulb, as LED power saving.s
Have you ever heard of led emergency vehicle lights
- 911Signal USA is a leading worldwide manufacturer of led emergency vehicle lights and sirens, including LED light bars, warning lights and strobe lights.They constantly get asked w...
What's emergency led light bar
- LED lights Light-emitting diodes (LEDs) are solid-state semiconductors that convert electrical energy directly into light in a process After joining p-type and n-type semiconductor...
Cheap led downlights become more and more polular
- They are one of very few specialist "fibre optic" lighting suppliers left in the country, our knowledge and experience in this fields is second to none hence the increase...
How much does a traffic light cost
- I think, any traffic police know: how much does a traffic light cost. Now in almost every crossroads, all around are hung with red, yellow, green, three traffic lights of color, it...
How much does a traffic light weigh
- Traffic lights, big and small, how much does a traffic light weigh, the need to points. Now in almost every intersection traffic lights, which is "traffic cop" don't ...