Q:The LED lamp and built-in ballast which good

I sleep standing still with a good outside. I was for my own use outside. I don't think inside is broken is not repaired? I now use is out of the blue card

Q:How to detect the LED to shoot the light quality is good or bad

Shoot the light efficiency of high and low to power factor, power factor, the greater the photosynthetic efficiency, the better, the power factor of ordinary lamp at around 0.5, the price is cheap, high-quality shoots the lamp power factor can achieve 0.99, the price is a bit expensive. Shoot the generally used to strengthen the lighting on the trim, general is embedded in the ceiling or wall, LED to shoot the light work generally have a higher temperature, so set to buy the high quality product, otherwise there will be a security risk.

Q:As title, please the personage inside course of study to explain to shoot the light and PAR light some of the differences in structure and application fields, especially for the requirement of power supply. Thank you very much!

LED lamp is to use leds as a light source to shoot the light. Traditional lamp used more halogen lamp, luminous efficiency is lower, more power consumption and environment temperature rise by illuminate, service life is short. LED light source on the luminous principle, energy-saving, environmental protection level are much better than traditional lighting lamps and lanterns. And LED the unidirectional formed to shoot the light distribution of the perfect support. PAR lights (Parabolic Aluminum Reflector light), which is also called, canister light, its structure is also useful in specular light bulbs installed in the cylinder reflective bowl of bromine tungsten bubble, main feature is that penetrate the fixed beam, beam Angle width of light spot size can adjust

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

Don't need transformer, directly with driver. You put the Led and transformer connected to be you of the transformer output voltage and lamp circuit, there is no through rectifier and filter, Led to the power demand is higher, with dc drive and are within a certain range of voltage and current. Look at your situation should be burned Led lamp bead!!!!!!

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:Household LED lamp directly on the ceiling above the glass, glass temperature is higher, matter?

LED lamp life is directly related to working temperature, high temperature must influence life, such as lamp bead light early failure, damage to the drive, and so on, so the LED heat dissipation has been LED lighting to solve big problems.

Q:How bright LED globe bulb 5 w? The light is to shoot the light, or like a glow around?

LED bulbs light Angle is at 180 degrees, glow, around 20 square meters room, five are very bright, of course, if one, may be not enough light

Q:The difference between led grille lamp and dared light

Led grille lamp and dared light is the same kind of lamp, just name is different.

Q:The difference between the LED downlight and LED lamp

Tube light is not good to adjust light downier light shoot the lamp to be hit out of the scope of the irradiation can see the light You can adjust the irradiation Angle

Q:What is the difference between LED ceiling lamp and LED downlight

Two lamps are installed on the top, the difference is the tube light is mounted into the dark, shoot the light is mounted, the tube light is diffuse light, mainly to adjust indoor light color effect, shoot the light is the direct light, is mainly used to highlight the background picture or object.