About some experience using LED lamp

5730 beads of experimental data:

1, color rendering index: up to international standards Ra=80. Note: the color rendering index is inversely proportional to the luminous flux, and the customer is measured according to the actual situation.

2, color tolerance index: international standards can be less than 5. Note: color tolerance index and the naked eye to see the actual color of LED white light is a certain degree of asymmetry, there may be a high color tolerance index, but the actual color of LED white light can not be accepted. )

3, light efficiency: the current international LED white light effect is 60-90lm/W, and in a certain type of LED white light can achieve 100-120LM/W light effect.

4, electrical resistance index: very stable. Under the premise of constant voltage, current fluctuation is small.

5, resistance to cold and hot: in the positive temperature of 80 degrees and minus 35 degrees low temperature can still work.

6, consistency: color temperature can ensure good consistency! The above data is the result of work experience

Using the proposed data 5730 beads:

1, the proposed drive current: 100-145mA; maximum current recommended not more than 150mA.

2, instantaneous driving voltage and reverse voltage should not exceed 5V, or on LED lamp damage or seriously damaged to repair.

3, the use of ambient temperature -30 ~+60 C / C, it is recommended to optimize the design of the heat dissipation of the lamp, so that the temperature of the white LED lamp pin is less than 60 degrees celsius.

The 4 day, maximum light hours for 18 hours, continuous light of LED lamp life will cause a certain impact.

5, if the current in the 100-150mA, each to reduce the 10mA current, the corresponding decrease in light flux of about 4%; can be calculated on the basis of LED white light flux at work.

6, the power of 148-150mA for 0.5W; customers can calculate the total power consumption of the LED lamps at work.

Note the use of LED lamp:

1, all need to touch the LED lamp operating personnel must wear anti-static Bracelet really effective.

2, LED pins if there is a need to bend, break point from the LED colloid must exceed 3mm;

The normal requirements for welding 3, LED is 260 - 3 Deg. C, welding time shall not exceed 2 seconds, if the tin tin furnace, the temperature is below 275 DEG C, dipping time should not exceed 2 seconds, the operator is very skilled movement and precise.

4, when the LED wave soldering, wave welding machine to the real ground. When the ground wire, absolutely can not be connected to the city power grid above the ground, must be connected with the city grid ground completely separated by a real ground wire. The ground wire requires direct access to the bottom of the wet floor 5 meters below the depth. Note: many users do not pay attention to this point, resulting in wave soldering machine direct electrostatic breakdown LED chip, resulting in leakage and micro bright LED lamp or dead lights.

5, all contact with the material or equipment must be connected to the real ground.

6, the lamp is inserted into the lamp detection and the process of the PCB board, must be very cautious, must do three heavy protection: first, the operator must be wearing a really effective anti-static ring. Second, the work table must be covered with anti-static rubber. Third, in front of the operator must be equipped with an ion fan (in addition to electrostatic fan), in order to eliminate static electricity.

7, LED lamp board to electricity detection before, make sure the lamp board did not even Xiduoxi circuit short circuit, such as a short circuit, there will be damage or serious damage to the LED lamp, or immediately apparent, or a few days or longer to appear, resulting in a hidden dangers, so be sure to carefully check the circuit, which in many users who have appeared many times, this special pay special attention to!