Common bulb
(A) From the principle of material:
1. Tungsten bulb;
2. Three-color energy-saving light bulbs;
3. Gold halide light bulbs
4.LED high-power lamp bubble;
5.LED filament bubble.
(2) In terms of specifications:
1.E27 screw
2.E14 screw
3.E40 screw
4.G9 G10.. Wait bead
(3) From the appearance of:
1. Wax tail bulbs
2. Spikes
3-bulb
4 small lamp beads
The above are the general classification of common light bulbs, of course, there are many non-civilian lighting bulbs, not to say much.
As for how to buy LED bulbs, first you have to understand some simple light bulb common sense.
First of all, the main components of the bulb are the lamp body, the light-emitting chip and the driving power supply. Then the lamp body plays a role in heat dissipation, and bad heat dissipation directly affects the life of the lamp. The light-emitting chip plays a role in light color and brightness, and a light attenuation is also dependent on the chip. The role of the drive power supply is to provide a constant current and constant voltage power supply to the chip, and there is a capacitor on it, which directly affects the life of the lamp. So having said so much, you should know that when you buy a light bulb, you can see whether the heat dissipation of the lamp body is good, and the second is to ask what brand is the chip and drive power supply. Speaking of this, some people must ask again, how do we know what brand is good, I tell you that the general chip is Corey, Purui, SAN An, crystal. The good drivers are Lyford, Dongling, Mingwei. If this light bulb is used authentic above the brand, there is basically no big problem, as for what some people say about mobile phone stroboscopic, the quality is not good.
Well, that's all. Thank you!
Choose according to the brightness of the light and your needs,
If it is used for ordinary bathroom or aisle lighting, the brightness does not need to be too high, and the general power can be used. For the living room and other large places, choose a relatively large power, relatively bright light bulb. If the bedroom is used for children's learning, it is more necessary to properly choose the brightness, neither too bright to hurt the child's eyes, nor too dark to cause the child to myopia, after the guidance of professionals to choose, but also according to the needs of the child to adjust.