3. Delivery : DHL/ TNT/ Fedex, by Air, by Sea, etc.
Estimated Delivery Time
2-8 business days
3-8 business days
2-10 business days
1-7 business days
6-14 business days
7-12 business days
China Post Air Mail
7-15 business days
China Post SAL
14-30 business days
3-10 business days
30-40 business days
1.3-5 business days for Sample Orders; 7-30 business days for Bulk Orders for Bulk Orders.
2."Business days" means Monday-Friday, excluding holidays.
3.DHL and UPS cannot ship to military or P.O. boxes address
4.The Shipping Service above is for reference only, for any other questions, please feel free to contact us.
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Q:How to judge the quality of LED downlight
Determine the quality of LED ceiling lamp lighting effect, the United States and Taiwan LED chip chip chip, domestic chip etc.. Different brands, different prices, lighting difference is also large. Special low price downlight, make many use of chip production line down the defective products, color inconsistencies, brightness difference, short service life, users need to pay attention to.
Q:How to choose the right LED downlight
Look at the radiator lamps: cooling speed determines the degree of attenuation of the whole lamp and the service life of the radiator is too small will accumulate in the light of internal temperature. Light long time working under the condition of high temperature, light decay very fast, life is short. Our shell and radiator are all thick materials to ensure heat dissipation.
Q:How are LED lamp quality is good or bad?
3, light. Good LED lamp 25000 hours before the light is less than 30%, the main factors are the light source and the light however decided the quality of radiator. And better light sources have foreign CREE and so on.4, light effect. Luminous efficiency is the lumen number per watt, in units of LM/W. It is the reaction power saving performance of LED downlight. The better the power saving performance, the higher the light efficiency will be.
Q:Turn off the lights after the bright LED lamp
Because the electrician is working on the power off switch, the power switch is a zero line, not a live wire. Electricians know that the power switch must be cut off by the line of fire, and no danger of electric shock is announced. If the power switch is on fire line, after the power is cut off, the FireWire will continue to supply power to the LED driver. Therefore, the LED lamp will have a faint light when the switch is turned off.
Q:LED is not only the benefits of downlight what harm?
The characteristics of LED lamp: overall unified and perfect to keep building decoration, without destroying the lamps installed, building decoration light hidden inside, the light source is not exposed, no glare, the visual effect is soft and uniformThe advantages of LED downlight:1, energy saving: white light LED energy consumption is only incandescent lamp 1/10, energy-saving lamps 2/5, longevity: LED theoretical life can be more than 100 thousand hours, for ordinary family lighting can be described as "once and for all"". LED downlight pictures (19)2, can work in a high-speed state: energy-saving lamps, if frequent start or turn off, the filament will blacken, quickly damaged.3, solid state package, belong to cold light source type. Therefore, it is easy to transport and install, can be installed in any micro and closed equipment, not afraid of vibration, the main consideration is the heat dissipation.4, LED lighting technology is changing rapidly, and its luminous efficiency is amazing breakthrough, the price is constantly decreasing. The era of a white LED lamp coming into the home is fast coming.5, environmental protection, without mercury (Hg) and other harmful substances to the environment, will not cause damage to the environment. The assembly parts of LED lights can be easily disassembled and disassembled, and can be recycled by other people without recycling by the manufacturer. LED does not contain infrared and ultraviolet light, so it does not attract insects.6 、 fast response speed: LED fast response, completely eliminates the shortcomings of the traditional high voltage sodium lamp glow process.To say LED downlight drawback is the market disruption of LED products are not up to the specified standard, so the market will have a lot of defects, and the price is low
Q:LED lamp is mainly used in where
LED downlight with much more local hotel, shop, office, family etc..
Q:Common questions about LED downlight spotlights
According to your lamp data should be 4W your dimming driver is 6--12, 12V4 is only 6W output power so only one use, otherwise affect dimming
Q:What is the difference between the LED and the LED lamp ceiling lamp
Specific point is, smallpox lamp, general light source and lamps and lanterns sell together. You are your own choice by light source lamp, but it is still about the same. The key depends on what kind of effect you use
Q:What brand of downlight is good? Please explain the reason, thank you!
Value. Of course, a person's life is not all activities, just for money, the pursuit of fashion, to accept new things, but also a way of life!
Q:LED ceiling lamp and LED downlight what is the difference
The ground is the vertical light lamp, ceiling lamp is light.