Replace 200W Incandescent Light CE Certification 11W E39 Led Bulb

Replace 200W Incandescent Light CE Certification 11W E39 Led Bulb

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 pc

Supply Capability:: 20000 pc/month

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5.FAQ

We have organized several common questions for our clients，may help you sincerely：

①How about your company？

Old fashioned of castings forging in carbon steel and alloy steel，is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

②How to guarantee the quality of the products？

We have established the international advanced quality management system，every link from raw material to final product we have strict quality test；We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

③How long can we receive the product after purchase?

How to know the three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers.Commonly 7 to 10 working days can be served.

Q:LED bulb with what type of LED beads?: The LED bulb is mainly white and warm white two colors are white, the temperature is generally 6000-6500K color, the color of the sun light at noonWarm white temperature is 2700-3000K, yellow, similar to the sunset color temperature.

Q:What are the characteristics of LED bulb?: Less power consumption, a 5 Watt LED bulb, equivalent to 40 watts of ordinary incandescent.

Q:LED bulb w can replace 40W incandescent lamp: The standard of luminous flux according to the luminaire is lumen (LM). Incandescent lamps are w 11-12lm per 40w=440-480lm

Q:Why is 3W's LED plastic bulb so cheap on the market? Is there any drawback to the price difference between aluminum and aluminum?: The difference of power factor is large, and the resistance capacitance pressure drop is below 0.5 PF. Constant current and constant voltage drive PF over 0.9. The resistance drop pressure is really attractive, after all, the price is there. The average person doesn't understand the look.

Q:How did the trademark on the LED bulb go up?: Laser printing and screen printing, pad printing can be, look at the needs and equipment.

Q:What brand of LED bulb is good in quality?: See shape. Incandescent bulbs are usually pear shaped, so the bulb should be pear shaped. That's easy to do. But incandescent lamps are all glass products, and because LED requires heat radiation, aluminum alloys are usually used as housings, because of their low cost, easy processing, and good thermal conductivity. The size of the aluminum shell determines the heat dissipation and also determines the life span.

Q:LED what is the plastic shell of the bulb? What plastic material is better? What do you need to pay attention to?: There are several good LED ball bubble, which with aluminum cooling. Relatively new appearance.

Q:LED bulb PC, will the white cover affect the color temperature of the finished lamp?: The chip may damp, no air humidity warehouse management process; or the chip in the assembly process by foreign influence, the lampshade is removed, and then measured once in the color of the aluminum plate radiator

Q:What does "A19" mean in LED A19 bulb?: A stands for bubble type, A hemisphere bubble19 the numbers in the back indicate the size of the bulb (mm in diameter)On the market LED bulb generally has: hemisphere bubble lamp, A15, A17, A50, A60Global bubble G45, G55, G80, G120 and so on

Q:LED bulb after the power failure, still glimmer, can last hours or even all day, what is the reason?!: If it is to continue the glimmer of minutes, the main side is the use of resistance and step-down circuit caused by the normal phenomenon. It's very rare for the factory to use this old model to make LED balls. Circuits that run for hours or all day on the side of the LED bubble are out of order. It's not normal to shine for so long. Now most of the LED bulb is using IC constant current supply circuit, no such situation has emerged.

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