Q:There are no holes 7 cm, 9W led downlight

Spotlights, 7 cm can do, and if you feel dazzling, you can use acrylic diffuser plate to do astigmatism, you can also adjust the angle

Q:How much LED 150W downlight spiral energy-saving lamp replacement

No matter where you use it, in general, not less than 50W LED lights can be, if not white, power needs to increase a little.

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:Excuse me, how many different sizes for LED lamp lumens

If we assume power 5W 4 inch downlight case, assuming optical efficiency is 100LM/W, 4 inch downlight ideal luminous flux of 500LM, is on the wreck. The transparent cover is about 400 of the LM, if it is other material non transparent light cover would be lower, probably only more than 300 LM

Q:Why use LED lamp light source patch

In a large number of automated production, the packaging cost of the patch LED itself and the cost of soldering to the circuit board are lower than those of the small power LED.

Q:LED lamp is mainly used in where

Downlight is generally used in shopping malls, offices, factories, hospitals and other indoor lighting, the installation is simple and convenient for people to love. LED downlight downlight all inherited the traditional advantages, less heat, energy saving and long service life, small maintenance costs. The early LED lamp LED lamp due to expensive, the overall cost is very high is not acceptable to the customers. With the decrease of LED lamp chip prices and cooling technology improved, laid a solid foundation for the LED lamp into the commercial field.

Q:What is the role of LED downlight

In fact, choose a good day Lantern is a LED lamp energy saving function, ordinary energy-saving lamps should be minimum 5W is generally 11W, a LED lamp bead is 1W, long service life, ordinary energy-saving lamps have radiation, light at 400 nm will produce ultraviolet light is harmful to people, UV will attract insects so the general energy-saving lamp has bugs in the circles above, the LED will not produce ultraviolet

Q:LED ceiling lamp and LED downlight what is the difference

Two lights are installed at the top, the difference is less into the built-in lamp, lamp is installed, downlight is diffuse light, mainly regulate the indoor light effect, light is direct light, mainly to highlight the background picture or object.

Q:Excuse me, how to install the LED lamp?

Pull over the protective device for the lamp, and note that the wire is configured to prevent the conductor from becoming brittle or rodent bite

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