How to choose the light emitting diode source of electric lamps manufacturer

The current modern lighting engineering key part, can be said to be the LED power supply, each kind of power supply have different purpose choice! So how to configure the power supply? Solar street light prices manufacturers LED power supply when the choose and buy must understand these properties and characteristics. 1. High stability: like

at present, the key part of the modern lighting industry can be said to be the LED power supply. The use of each power supply has a different choice. How to configure the power supply? Solar street light price maker when buying leds power must understand the following performance and characteristics. 1. High stability: like installed in high altitude led street lamp driver power supply, maintenance is not convenient, only need to maintain a can reduce the cost. 2. High efficiency is a energy saving problem, drive power is more efficient. The structure of the power supply installed in the lamp is very important. Because leds luminous efficiency will be increased with the temperature rise and fall, and so the heat dissipation is very important. Power supply with high efficiency, low consumption, the calorific value is small in the lamp, reduces the temperature of the lamp, very beneficial to delay the light attenuation of light emitting diode. Shandong street lamp factory, specializing in the production of light pole, light, 3. High power factor, power factor is the requirement of load of power grid. Below the 70 watts of electrical no compulsory standards. Though a single small power electrical power factor is lower, but the impact on the grid is not big, but the night electricity consumption is large, the load is too concentrated, can cause serious pollution to the grid. For 30 w - 40 w leds is a device driver power supply, the state power factor also to have certain index requirements. 4. Driving mode: there are two types of current, a constant voltage source provides constant current source, each constant current source to each led power supply. This combination is flexible, a light-emitting diode failure will not affect the work of other light-emitting diodes (leds), and the cost would be slightly higher. The other is a dc constant current source, light-emitting diodes in series or parallel operation. It has the advantage of low cost but flexibility is poor. It also needs to work in does not affect the other leds solution under the condition of a light-emitting diode failure problem. These two forms coexist for a long time. Multi-channel constant current output power supply mode in terms of cost and performance will be better. Maybe this will be the mainstream direction in the future. 5. Surge protection: relatively poor ability to resist surge of light emitting diode, especially the reverse voltage resistance. This aspect of the protection is also very important. When installing outdoor led lighting, due to the power grid load rejection and lightning induction, surge intrusion from the grid system, all kinds of surge can cause some damage of light-emitting diodes (leds). As a result, light emitting diode drive power supply should be inhibiting surge intrusion and the ability to protect leds from damage. 6. Protection function: on the basis of the conventional protection function, the best in the constant current output increase LED temperature feedback, prevent LED temperature is too high. 7. Protection: the external power supply should be waterproof structure, shell should prevent bask in. 8. The service life of driving power supply should match the service life of the light emitting diode. 9. To meet the requirements of the safety regulations and electromagnetic compatibility.