Concealed Led Ceiling Lights
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FAQ
- How did the trademark on the LED bulb go up?
- Laser printing equipment is generally printed up, so that the ridge up color is not so deep, but also can not wipe off
- What are the types of LED bulb?
- According to the power points, LED bulb has 1W, 3W, 5W, 7W, 9W, 12W, 15W and other power, customers can choose according to brightness requirements.
- LED bulb bulbs, do you need 3C certification now?
- Simple bulb does not require 3C or CQC certification.Only with lampholders, and then judge according to the situation.
- Want to find common features, unified purchase accessories repair!
- The most common problem is that 1, the drive power is broken 2, the light source due to excessive or excessive flow leading to necrosis
- LED what kinds of screw bulbs are there?
- Ordinary bulb is the most common, is a metal electrode which is threaded, so it requires that one electrode when installing the socket contact thread to pick the zero line, the middle dot electrode lamp power. Otherwise, an electric shock occurs when an accidental contact with the exposed metal. Because of this symmetrical way, the bulb can be threaded to fit the socket.
- 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
- What is the AC voltage of the LED bulb?
- LED lamp or constant voltage drive, generally through the drive circuit filter rectifier, LED bulb bulb AC voltage is generally 220V, power is divided into 3W, 5W, 7W, 8W, 9W, 12W and so on.
- LED how does the bulb return electricity?
- What is reflow? Never heard of it. I am a lighting technician
