Q:Want to buy a few LED bulb, do not know how to identify the quality of good or bad, ask for solution ~!

Plastic bulb lamp, I have done it myself, this gadget specializes in low-end market, it is recommended not to use, used well, used for a long time, used poorly, minutes of effort have to hang.

Q:Ordinary lamp LED bulb can?

It should be clear, your point is before the lamp lights inside what, from the rectifier? LED bulb is mostly with drive, if there is no self rectifier lamp light, the best is the bulb is directly connected to the E27/E14/B22 lamp, LED lamp or light source has a good energy saving effect, mercury free lead-free, no stroboscopic, energy than traditional fluorescent lamp 80%

Q:What is the 15 Watt lumen of the LED bulb?

The chip is better, but it's also 80lm/w's light effect, so the 15W flux is 1200lm's.. The chips are even lower

Q:Can the bulb's true life reach 30000~50000 by LED?

LED life and quality, work current and many other factors. Life is calculated according to the half of the light

Q:LED what is the plastic shell of the bulb? What plastic material is better? What do you need to pay attention to?

You should say that the bulb of the bulb, usually PC material.

Q:Are there any differences between negative ion bulb and LED bulb?

LED bulbs are made by plug-in lights or SMD or high-power LED, and there is no built-in negative ion generator.

Q:60W how many lumens and how many W LED bulb does incandescent bulb replace?

A LED lamp lumens general good point value is above 100;The brightness of 60W incandescent lamp compares with LED lamp difference is 10 times;

Q:Choose which light bulb LED bulb is the healthiest

The two said warm light, power, color temperature and so on have little to do with health

Q:What's the reason why LED bulb gets a lot of heat?

LED light is a large amount of heat, more than 70% are calories. Different manufacturers are not very different

Q:What does the LED bulb patch mean?

According to different applications, different size, cooling scheme and luminous effect of.LED packaging forms. At present, according to the classification of LED package are mainly Lamp-LED, TOP-LED, Side-LED, SMD-LED, High-Power-LED, Flip Chip-LED Lamp-LED (vertical LED) emerged in the early Lamp-LED is in line LED, it adopts the form of sealing packaging. The potting process is the first injection of liquid epoxy resin in LED molding cavity, and then insert the pressure LED bracket welding, in the oven make epoxy resin after curing, the LED from the cavity from the molding. Due to the relatively simple fabrication process, low cost, have a higher market share. (SMD-LED surface mount LED) patch LED is pasted on the surface of a wiring board, suitable for SMT processing, can be reflow, a good solution to the brightness, perspective, smoothness, consistency, reliability and other issues, the The lighter PCB plate and a reflecting layer material, improved to remove the carbon steel pin dip LED heavier, the display of epoxy resin less reflective layer needs to fill, to reduce the size, reduce the weight. In this way, the surface mount LED can easily reduce the weight of the final product in half, make the application more perfect.