• LED FILAMENT LAMP BULB 4W B TYPE NEW DEVELOPMENT System 1
  • LED FILAMENT LAMP BULB 4W B TYPE NEW DEVELOPMENT System 2
  • LED FILAMENT LAMP BULB 4W B TYPE NEW DEVELOPMENT System 3
  • LED FILAMENT LAMP BULB 4W B TYPE NEW DEVELOPMENT System 4
  • LED FILAMENT LAMP BULB 4W B TYPE NEW DEVELOPMENT System 5
LED FILAMENT LAMP BULB 4W B TYPE NEW DEVELOPMENT

LED FILAMENT LAMP BULB 4W B TYPE NEW DEVELOPMENT

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Loading Port:
Shekou
Payment Terms:
TT OR LC
Min Order Qty:
500 pc
Supply Capability:
10000000 pc/month

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Specification

Color Temperature:
2500K-7000K
LED type:
EPISTAR
Lamp luminous flux(lm):
400
Body material:
Aluminum Alloy
Base type:
B22,other,E14,E26,E27
Power(W):
4W
Certification:
BV,C-tick,CCC,CE,CQC,EMC,Energy Star,ETL,FCC,FDA,GOST,GS,LVD,PSE,REACH,RoHS,SAA,SASO,UL,VDE
Working Temperature(℃):
-370C - 550C
PF:
>0.5
Input voltage(V):
85-265V, 12v, 24v,36v
CRI (Ra>):
>80
Warranty:
two years

Product characteristic

1.    High brightness LEDs 96pcs(4pcs COB)

2.    Long life service, lasts up to 30000hr

3.    Excellent weathering resistance, insensitive to humidity, suitable for wide range temperature

4.    Easy to install, easy to use

5.    No strobe flash, speedy start, no flicker, good for eyes

6.    Safe, energy-saving, environment friendly


 

Application Scopes

Suitable for most indoor lighting applications, such as household, hotel, shopping mall,

 supermarket, office, car park, factory, advertising box, car, vessel and other transportations, 

can significantly reduce the energy consumption; give you a green light environment

Item

Parameter 

Power

4w

LED Quantity

96pcs LEDs

Colors

Warm white, white, cool white

CCT

2900-6500K

Ra

75

Lifespan 

30000-50000 Hours

Light flux

300LM

Light efficiency

100LM/W

Glowing

360°

Material

Glass, Aluminum

Net Weight

0.032KG

Gross Weight

0.046KG1/pc

Size

55*96m 


 Technical request

Item

Units

Parameter range

Working environment

-370C - 550C

Humidity

RH

≤90%

Storage condition 

-40℃~80℃

Limited voltage

V

AC85-265V  50Hz

Protect a Grade

IP20   

 

 


LED FILAMENT LAMP BULB 4W B TYPE NEW DEVELOPMENT

LED FILAMENT LAMP BULB 4W B TYPE NEW DEVELOPMENT

Q:What are the types of LED bulb?
According to the radiator shell to points, can be divided into plastic shell, aluminum radiator and ceramic shell, in general, the ceramic shell heat radiator is best, but the price is relatively expensive, the widespread use of aluminum shell, moderate price, good heat dissipation performance
Q:Secret LED bulb bubble price difference why so big?
Component material. Whenever cheap prices are shoddy, without exception
Q:LED thread specifications for bulb bulbs?
Ordinary home E27 screw lamp ah, there is a need to ball on Taobao, art night lights, E27, E26, B22, E27 specifications in the majority! E27, E14, G10, E40 are more commonly used Oh!
Q:What are the characteristics of LED bulb?
The service life is long, and the average life can reach 100 thousand hours.
Q:Seeking the production process of LED bulb... Thanks
First of all, of course, the preparation of materials, the specific operation of the lamp to practice, each lamp has different methods of assembly, there are different work instructions. Only through practice can we write good and practical processes. Figure is a flow chart of MR16 assembly.
Q:What material is applied to the glass cover of the LED bulb? Can reach 90% of the light, can not see the inside of the lamp. Who knows, thanks for telling!
The milk white paint can't see light, but the transmittance is only eighty percent a few. At present, the market has not seen in line with the economic benefits of such LED ball bubble glass cover, can reach ninety percent transmittance. If any brother finds it, please let us know. We also want it very much. Oh, thank you.
Q:What are the requirements of the LED series inspection specification for bulb bulbs?
Insulation resistance: the lamp should not be placed for 48 hours in the damp box with relative humidity of hours. The air temperature in the box shall be controlled at any value between 20~30 degrees centigrade, and the temperature difference is within 1 degrees. The insulation resistance shall be measured in the wet box. Now the DC voltage on the lamp is about 500V. After 1min, the insulation resistance test will begin. The insulation resistance between the lamp holder, the current carrying metal parts and the accessible lamp parts shall be no less than 4M ohms.
Q:How to identify Ic constant current LED bulb?
Another is to destroy the bulb and see the power inside the bulb. Not a constant current power supply, only some capacitors, diodes, resistors, and the like. The constant current drive, in addition to the diode electrolytic capacitor, there is a 6 foot IC and a triode, there is a high frequency isolation transformer. To make it clear, you can take a look at it.
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:LED bulb is broken. The luminous patch is not bad. Can it be made into USB lamp?
Cannot connect directly. LED bulb is usually a series of LED series, and then parallel, generally about 12V. Single chip LED generally rated voltage at 3.0V~3.6V, USB, output voltage of about 5.0V.

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