LED lights are well preserved

store

To prevent moisture, LEDs should be stored in a dry and ventilated environment with a storage temperature of -40°C to +100°C and a relative humidity below 85%.

The LED should be used within 3 months in its original packaging to avoid rusting of the bracket.

After the LED packaging bag is opened, it should be used up as soon as possible. The storage temperature should be 5℃-30℃ and the relative humidity should be below 60%.

clean

Do not use unknown chemical liquids to clean LEDs, as this may damage the LED resin surface or even cause colloid cracks. If necessary, immerse the LED in alcohol or fluorine at room temperature for less than one minute.

Forming

Do not perform shaping during or after welding. If necessary, shaping must be done before welding.

Keep in mind that any squeezing of the resin may damage the gold wires inside the LED.

welding

During the soldering process, do not apply any external pressure to the lamp body, otherwise cracks may appear inside the LED, which will affect its internal gold wire connection and cause quality problems.

The colloid must not be immersed in the solder.

When welding, there should be at least 2 mm gap between the welding point and the bottom edge of the colloid. After welding, it is necessary to take three minutes for the LED to return from the high temperature state to normal temperature.

If you use a soldering iron to solder LEDs that are linearly arranged on the same PCB, do not solder two pins of the same LED at the same time.

When soldering with a soldering iron, a soldering iron of less than 30W is required.

There are two specifications for LED welding methods, the specific parameters are as follows:

Soldering temperature: 295℃±5℃ Soldering time: within 3 seconds (only once)

Wave soldering temperature: 235℃±5℃ Soldering time: within 3 seconds

Note: Improper control of welding temperature or time may cause deformation of LED lens or open circuit inside the wick, resulting in dead light.

Recommended use

During use, whether using a single LED or multiple LEDs, the recommended DC drive current IF range for each LED is 10mA-20mA.

A momentary pulse can damage the fixed connection inside the LED, so the circuit must be carefully designed so that the LED will not be subjected to overvoltage (overcurrent) shock when the circuit is opened and closed.

When multiple LEDs are used, the brightness and color of the light must be consistent. Therefore, the driving method and driving conditions must be fully understood. Under normal conditions, our company guarantees the consistency of color and brightness of 20 mA spectral analysis.

To obtain uniform brightness and color, LEDs from the same batch should use the same current and should not be mixed to avoid brightness differences.

For details on the relationship between LED's VF, IF, IV, WL and temperature, please refer to the product specification.

ESD (Electrostatic Discharge Protection)

Static electricity can cause LED function failure, so it is recommended to prevent ESD from damaging the LED.

A. When testing and assembling LEDs, operators must wear anti-static wrist straps and anti-static gloves.

B. Welding equipment, testing equipment, work tables, storage racks, etc. must be well grounded.

C. Use an ion fan to eliminate static electricity generated by friction during storage and assembly of LEDs.

D. The box for LED should be anti-static and the packaging bag should be anti-static bag.

LEDs damaged by ESD may experience the following abnormal phenomena:

A. Reverse leakage, in mild cases it will cause the brightness to decrease, in severe cases the light will not turn on.

B. The forward voltage value becomes smaller.

LEDs cannot emit light when driven at low current.