Q:Old energy-saving lamps to replace myself home of smallpox, bought the Led ceiling lamp small transformer two outlet with L, N, and their charged to check the two connection of the old lamp base, there are thermal power, and ask the customer service, selling Led lights under said can both zero firewire, ask you confirm it, thank you

Since there are marked as annotations, although in theory can regardless of the zero line of fire.

Q:LED lamp with drive, do you want the transformer?

There are two kinds of leds to shoot the light, the 12 v power supply voltage and 220 v power supply voltage. If the power supply voltage is 220 v, without additional transformer, lamp has a built-in transformer. If it is a 12 v power supply, need another 12 v power supply, general ac dc, but never can directly connect the 220 v power supply.

Q:The led lamp is suitable for reading?

You can replace a led fluorescent lamp, it is better on the eyes!

Q:The 4 w LED shoot the light, can make the lamp of the study? Reading a book with

Don't know how your study? If play is not enough, afraid to see your eyes too tired, tired, you can put a few more,

Q:Buy what good LED lamp? How to judge the quality of lamps and lanterns is good or bad

Drive power supply, and good driving power can guarantee the overall life of the lamps and lanterns, LED the theory of life and the life of the general drive power supply is 100000 hours less than 100000 hours. In order to guarantee the overall life of the lamps and lanterns, driving power supply is also a key link; On the other hand must be LED constant current drive, if using a low-cost constant voltage driver will shorten the service life of the LED. As an ordinary consumers how to identify the LED driver power supply of the good or bad? See a few parameters, droop, service life, light efficiency, and quality assurance period. To provide quality assurance for a long time factory production quality LED lamps and lanterns is good.

Q:Led to shoot the light color temperature 3000 k what do you mean who knows

Color temperature (colo (u) r temperature) is visible in photography, video, publishing, and other fields has important application characteristics. Light source color temperature is by comparing the color and theory of thermal blackbody radiator. Hot blackbody radiator with the colour of the light source to match the kelvin temperature is the color temperature of light source, it is directly associated with Planck's blackbody radiation law.

Q:A transformer can shoot the light at the same time for several of the 12 v?

Shoot the light has built-in transformer, you just need to provide 220 v power supply. Shoot the light, shoot the light is a typical advocate the lamp, wuding scale modern genre of lighting, can create an atmosphere of indoor lighting, if a row of small shoot the light, the light can change the wonderful design, due to the small shoot the light can be free transform Angle, the effect of the combination of lighting also go, shoot the light is soft, elegant, its also local lighting, foil atmosphere.

Q:Led lamp can adjust luminosity

Is can make color of LED lamps and lanterns that move light, only the promise of dimming color LED drive power supply line,

Q:LED to shoot the light, heat sink, aluminum alloy profiles and die casting aluminum radiator which is better?

Even better aluminum profile, material, wall thickness can be thinner, heat dissipation performance is better..

Q:On the ceiling lamp bulb is broken can change LED light bulb?

Can the LED to shoot the light, there are similar. If you compare the outlet is in line with the line.