SMD LED instruction manual: 1. Confirm the materials, whether the LED BIN grades are consistent with each other, the brightness may be different when used together, and the luminous color may be different when different CIE BINs are used together).

2. Packaging and storage, before opening the package, prevent moisture from entering the interior of the LED. It is recommended that the LED of the SMD series be stored in a drying cabinet with a built-in desiccant. The storage environment temperature range is 5-30 degrees, and the humidity does not exceed 50%.

3. Precautions after unpacking, take measures to dehumidify the whole roll as much as possible after unpacking. Dehumidification conditions: bake at 70 degrees for 4-12 hours. The dehumidified material should be used up as soon as possible (within 24 hours). Please seal or place the remaining material in an environment of 10-40 degrees and humidity not exceeding 30%.

4. Precautions for operation, this product is only reflowed twice, and the second reflow must be cooled to room temperature after the first reflow. The recommended reflow temperature range is 200-240 degrees. During the operation, the material cannot be taken directly by hand, there is sweat on the hand, and the sweat will cause optical pollution to the surface of the silica gel, which will affect the light output. In addition, the silicone is relatively soft, and pressing hard with your hand will cause the wire to break and cause a dead light.

Mounting LEDs on curved boards is not recommended. Avoid rapid cooling when soldering, avoid any form of mechanical force or excessive vibration during LED solder cooling, and do not bend the board after soldering. Do not use tweezers to squeeze the surface of the colloid during rework or single-material operations. Because the silica gel is relatively soft, squeezing the colloid with tweezers will cause disconnection, crush the chip, and cause the lamp to die.

In batch operations, if the nozzle is smaller than the inner diameter of the product, the nozzle will punch the silicone, causing the gold wire to break, and the chip will die under pressure.

Soldered LEDs should not be reworked. If it is unavoidable, a double-headed soldering iron should be used, but it should be confirmed in advance whether the LED characteristics will be damaged after rework.

5. Static electricity protection, LEDs are static sensitive electronic components, and various measures should be taken to avoid static electricity. For example: wear an electrostatic ring during use. All installations and instruments should be grounded. It is recommended to test the assembled LED product to check whether the LED is damaged by static electricity.

6. For cleaning, it is recommended to use isopropyl alcohol to clean the LED. If other solvents are used for cleaning, make sure that the solvent will not affect the epoxy, silicone, silica gel, silver layer of the bracket, etc. Ultrasonic cleaning is not recommended to avoid damage to the LEDs. If it is unavoidable, please conduct a pre-test before cleaning to confirm whether it will cause adverse effects or potential hidden dangers to the LED.

7. Other precautions, long-term exposure of the LED to sunlight or occasional exposure to UV rays may cause the colloid to turn yellow. In order to ensure the photoelectric performance of the LED, please keep the surface of the LED light-emitting area clean and avoid covering with fingerprints or other foreign objects. When designing the circuit, it is necessary to prevent the reverse voltage or excessive current from instantaneously impacting the LED during the switching process. Avoid sharp tools such as tweezers from touching the silicone gel part during use.