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The precautions for using LED light emitting diodes are as follows:

Date:

2024-05-31


The precautions for using LED light emitting diodes are as follows:

LED products must be used under standard conditions and cannot be used under high current and high voltage conditions, otherwise there may be adverse phenomena such as burning out, dim lights, intermittent lighting, flickering, shortened lifespan, and fast attenuation.

High power LED products must be installed on devices with good thermal conductivity and heat dissipation performance, which is conducive to the heat diffusion of LEDs; Otherwise, it will cause adverse phenomena such as fast attenuation and shortened lifespan.

Do not use organic solvents (such as acetone, alcohol, Tiana water, etc.) to clean or wipe the luminescent tube colloid, causing the surface of the epoxy resin to coarsen, causing abnormal luminescence or internal rupture of the colloid, causing damage to the connection between the gold wire inside the luminescent tube and the chip or the chip and bracket, resulting in no luminescence or abnormal luminescence.

Do not forcefully strike the colloidal part of the LED or damage the internal structure of the colloid in any other way to avoid disconnecting the gold wire from the chip or the chip from the bracket, causing the LED to not emit light or emit light abnormally.

Direct insertion type light emitting tube welding: When inserting the light emitting tube into the PCB, please insert it until it cannot be inserted, and keep the light emitting tube stable and consistent in height.

The two pins of the light emitting tube have one pin long and one pin short, with the long pin being the positive electrode; The short foot is the negative electrode; Do not insert the plug-in backwards, otherwise the LED will not light up.

Try to connect the parts and weld them as much as possible before cutting off the excess parts of the pins, as this is beneficial for heat dissipation during welding.

When manual welding, please use a power of no more than 30W and a soldering iron tip of less than 1.5mm, which is more suitable.

1. Use current

The normal working current of LED is 20ma, and any small fluctuation in voltage will cause a significant fluctuation in current (10% -15%). Overcurrent protection: Excessive current can cause LED lights to burn out and accelerate brightness attenuation

LEDs should operate under the same computer conditions. It is generally recommended to use a current of 15-18 mA for LEDs. Excessive current can shorten the lifespan of LEDs, while low current cannot achieve the required strong light

II. Brightness Test and Product Instructions

When testing VF, brightness, and wavelength, the current must be 20 mA, and when testing VF, the IR should be set to 10UA. Set UR to 5V when testing VF

2. When using products with spectral colors, please categorize and use them in the order of BIN numbers. It is not allowed to mix and use products with different levels of BIN numbers and labels on each package on the same product

III. Welding conditions

LED cannot be powered on during welding

When using complex iron welding: the power history of complex iron is below 30W, the temperature of complex iron cannot exceed 280 ℃, and the preheating time is 60 seconds. The welding time should not exceed 3 seconds; The immersion welding time and temperature should not exceed 260 ℃, and the time should not exceed 5 seconds

Welding position of the network iron; More than 4 millimeters from the bottom of the colloid: immersion welding position; More than 3 millimeters from the bottom of the colloid

4. When welding or heating, it is necessary to avoid any vibration or external force on the used parts before the temperature returns to normal. It is recommended to use a fixture to fix the welding

Working storage temperature

LED LAMPS: Working temperature -30 ℃ -80 ℃ Storage temperature -40 ℃ -85 ℃

LEDDISPLAYS: Working temperature -20 ℃ -70 ℃ Storage temperature -20 ℃ -85 ℃

OUT-DOOR LED LAMPS: Working temperature -20 ℃ -60 ℃ Storage temperature -20 ℃ -75 ℃

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