1. Look at the overall ‘power factor of the lamp’: The […]
1. Look at the overall ‘power factor of the lamp’: The low power factor indicates that the driving power supply and circuit design used are not good, which will greatly reduce the life of the lamp! The power factor is low, and the life of the lamp with the best lamp beads will not be long.
The power factor is high or low, and it can be detected by the "power factor meter"! The power factor of general export led lamps needs to be more than 0.85. If the power factor is less than 0.5, it should be said that it is an unqualified product or garbage product. Not only is it short-lived, but the actual power consumption is about twice as high as the nominal value. Compared with energy-saving lamps, there is no power saving at all! Therefore, this is why LED lamps need to be equipped with high-quality, high-efficiency driving power.
2. Look at the "luminaire heat dissipation conditions-materials, structure": LED lamp heat dissipation is also very important, lamps with the same power factor and the same quality lamp beads, if the heat dissipation conditions are not good, the lamp beads work at high temperature , The light attenuation will be great, and the life of the lamp will be reduced.
At present, the heat dissipation materials used are mainly copper, aluminum, and PC. The thermal conductivity of copper is better than aluminum, and the thermal conductivity of aluminum is better than that of PC. Nowadays, the heat sink material generally uses aluminum most, and the best ones are insert aluminum and aluminum Profile, extruded aluminum) followed by the best cast aluminum, the best heat dissipation of aluminum inserts. If air convection is used to dissipate heat, the insulation of the circuit and power supply must be dealt with. Otherwise, the lamp works in a relatively humid environment, and it is easy to cause a circuit short circuit, causing your safety accident!
3. Looking at the driving power supply used by the lamp, the service life of the power supply is much shorter than that of other parts of the lamp. The life of the power supply affects the overall life of the lamp. The theoretical life of the lamp bead is 50,000-100,000 hours, while The service life is between 0.2 and 30,000 hours. The design and material selection of the power supply will determine the service life of the power supply.
4. To know the quality of the lamp beads used in lighting: the quality of the lamp beads mainly depends on the quality of the chip and the packaging skills.
5. Look at the light effect: the same lamp bead power, the higher the light effect, the higher the brightness, the same lighting brightness, the smaller the power consumption, the more energy-saving.
6. Looking at the power supply efficiency, the higher the power supply efficiency, the better. The higher the power consumption of the power supply itself, the greater the output power.
7. See if it meets safety standards? The safety standards for led lamps in my country have been introduced. Please choose led lamps according to the safety standards stipulated by the state.
8. Finally, look at the details of the led flat lamp is not delicate enough, and the appearance is not delicate enough. .
