NEW 3W LED Filament Bulbs

What are the advantages of leds compared with tungsten filament lamp?

First, energy-saving lamps, the poles are ordinary tungsten. Tungsten wire electric heating, can emit electrons. On both sides of the bulb and high voltage, electric field, the electrons will in tubes is accelerated, forming a certain velocity and energy of electron flow., is being pumped into vacuum tubes filled with mercury inside, is what we called mercury. Second, what is the advantage of LED lights 1, energy saving. White LED power consumption is only 1/10 of incandescent lamp, energy-saving lamp of a quarter. 2, a long life. Life can reach more than 100000 hours, the average household lighting is \ "\" once and for all. 3, can work at high speed. Energy-saving lamps if frequent start or shut off the broken filament will be dark soon. 4, solid-state encapsulation, belongs to the cold light source type. So it is very easy to transport and install, can be in any tiny and closed equipment, not afraid of vibration, basically don't have to consider heat dissipation. 5, LED technology is in progress with each passing day, its luminous efficiency is astonishing

Product info.

Application & Light design

What role does the synthetic sapphire in the LED lights

Usually, GaN base material and devices of the epitaxial layer mainly grows in the sapphire substrate. The sapphire substrate has many advantages: 

first, the sapphire substrate production technology mature, device quality is better; Secondly, the stability of the sapphire is very good, can use in the process of high temperature growth; 

Finally, the sapphire, high mechanical strength, easy to handle and cleaning. 

As a result, most process generally in sapphire substrate. Use a sapphire as substrate, there are some problems, such as lattice mismatch and thermal stress mismatch, it will produce a large number of defects in the epitaxial layer, at the same time for subsequent processing device. Sapphire is a kind of insulator, room temperature resistivity of more than 1011 Ω · cm, in this case cannot make vertical structure of the device; Usually only in the epitaxial layer on the surface to make n and p type electrode (as shown in figure 1). On the surface of two electrodes, resulting in a decrease of the effective emitting area, at the same time increase the lithographic and etching process in the device fabrication.

TRADE TERM of led tunnel light

1. Payment: T/T;

2. Delivery Time (sample): in 6 days.

3. Production Time: 7-10 days for 10-100pcs; 10-15days for 100-300pcs.

4. Price Term: EXW, FOB, CIF

TRANSPORTATION of led tunnel light

1. by Sea; by Air; by Express (DHL, UPS, Fedex, TNT, EMS etc.).

2. FOB Port: Shanghai/Ningbo