LED FILAMENT LAMP BULB DIMMABLE 4W B TYPE NEW DEVELOPMENT

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500 pc
Supply Capability:
10000000 pc/month

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Item specifice:

Color Temperature: 2500K-7000K LED type: EPISTAR Lamp luminous flux(lm): 400
Body material: Aluminum Alloy Base type: E26,E14,B22,G4,G9,other,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 Description:

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


Serial 

 Check a project

Check condition

 parameter

Allowable error

Remarks

1

Total Power

25

3W

≤±0.5


2

Input

25

AC220V

±20V


3

Power Factor

25

0.9



4

Work Temp

5

-40--50

≤±1W


5

Frequency

25

50hz




Item

Parameter 

Power

4w DIMMABLE

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 DIMMABLE 4W B TYPE NEW DEVELOPMENT

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Q:Is there any flicker in the LED bulb?
You're right. The strobe is either determined by the driver, the current changes, or the filter doesn't work well
Q: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
Q: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.
Q:Will the LED bulb, T8, T5 lights, radiator lamps, is the hotter the better? What's the regular temperature? What are the common heat release materials? Specifications?
If the material with better thermal conductivity, the lamp shell about 60 degrees is best.Reason:1: if the temperature is too high, that your radiator is too small.2: if the temperature is low, indicating that your calories did not lead out. (of course, if the radiator is too large and the temperature is low, but the bulb and tube are too heavy to pass by certification)
Q:How does the LED bulb look good or bad?
See brightness, whether the luminous uniformity, the back of the heat is good?
Q:LED bulb PC, will the white cover affect the color temperature of the finished lamp?
PC Ivory lampshade, because of the low price, it is recommended to use light diffusion cover, so this should not be the problem
Q:Led the bulb is flashing. What's wrong with it? How do you fix it?
The driving power inside is broken. If there is basic electronic knowledge, replace the inner capacitor. Most probably the electrolytic capacitor is broken.However, the cost of the bulb products is relatively low, and the cost of the repair is greater than the cost of the change.
Q:What does the LED bulb patch mean?
The patch is referring to the lamp is put up, refers to the non patch lamp is plugged in, the distinction is probably a stick is inserted.
Q:I want to ask for high power LED bulb lamp wire inexplicably broke, and in large quantities. Is the quality of the lamp?
A sense of self is the following 1. package production process of wire bonding or partial welding weld. Whether the station is too large.2. through the current impact blanking line3. package factory using gold thread may be too fine
Q:LED bulb with what type of LED beads?
There are many LED bulbs with LED lamp types, different lighting manufacturers will adopt different LED models, at present, most of the 2835, 5730 beads, beads are 0.5W-1W LED beads, specific type: PL-P2835DW-C8-R3-C2/ PL-P5730EDW-C8-R3-C2

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