• wholesale led bulb 3W E27 System 1
wholesale led bulb 3W E27

wholesale led bulb 3W E27

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Shekou
Payment Terms:
TT OR LC
Min Order Qty:
-
Supply Capability:
5000/pcs pc/month

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1.Epistar 2835 LED,high brightness

2.Two solutions:IC and constant current dirver

3.Dimmable is aviable

4.2years warranty,CE&ROHS approved


Specification

Light typeLED Blub
Item NO.CLSB-001-SDMD
Power Consumption3W
BaseE26,E27,B22
LED Source15pcs Epistar SMD2835  
Input voltageAC88-265v
MaterialAviation aluminum+ PC cover    
DimensionΦ50*90mm          
Luminance Flux240-260LM
Light efficiency90lm/w
Emitting ColorWarm White,Nature White,Cool White
Color temperatureWW:3000-3200K   NW:4000-4500K   CW:6000-6500K
Color rendering index(CRI)75Ra
Beam angle140°
Work Frequency50 / 60Hz
Working Temperture-20~ 40 degrees Celsius
Life Span40,000 hrs
DimmableYes
Certification               CE&RoHS
Warranty2 years
Equal to conventional incandescent bulb25W



Feature

1. Use original Taiwan Epistar SMD2835

2. Long life span, up to 40,000hrs

3. Eco-friendly products, NO UV;NO IR; NO mercury

4. Unique and remarkable apperance design

5. Equivalent to conventional 25W incandescent bulb

6. CE ROHS Approved, 2 years warranty


Application

Illumination lighting for homes, offices, restaurants
,Display lighting for the articles in your stores and
shops



Package

color box/white box +middle box+ outer carton

1 Outer carton=2 middle boxs=50pcs

1 middle box=25pcs


Shipping

Shipping Service

Estimated Delivery Time

DHL

2-8 business days

FedEx

3-8 business days

TNT

2-10 business days

UPS

1-7 business days

EMS

6-14 business days

ePacket

7-12 business days

China Post Air Mail

7-15 business days

China Post SAL

14-30 business days

Air freight

3-10 business days

By Sea

30-40 business days


Trade terms

Payment:Sample/small amount: 100% payment in advance by Paypal or T/T.

             Mass amount: 30% T/T before production and 70% balance should be arranged before shipment.



Delivery time:Sample order: 3-5 working days     mass order:10-12 working days


Company information

1.7-year manufacture of LED lighting

2.Ensure quality by sourcing LED from US(Cree/Semi),Korea(Samsung),Taiwan(Lumenmax,Everlight,

   Epistar),ensure long lifespan by sourcing capacitor for driver from China top supplier BERYL.

3.Most products close to US Energy Star standard:Lumen maintance91.8% after 6000hs aging testing.

4.70% led lamp CRI>80

5.MOQ:samples order:1pcs     Mass order:50pcs

6.Flexible price policy: different solutions to satisfy to different market demand

7.40000hs lifespan &2 years warranty

8.CE(EMC&LVD)&ROHS approved

Q: LED what is the plastic shell of the bulb? What plastic material is better? What do you need to pay attention to?
There are several good LED ball bubble, which with aluminum cooling. Relatively new appearance.
Q: LED thread specifications for bulb bulbs?
Commonly used thread specification: E27 screw.Commonly used household ordinary E27 spiral lamp holder;
Q: What's the reason why LED bulb gets a lot of heat?
If the radiator has a large radiating area, the temperature is low
Q: LED how does the bulb return electricity?
A 0 ohm resistor with a large point on the negative electrode
Q: What's the cause of the noise during the aging of LED bulb bulbs?
This should be the power problem. It's easy to make a noise because there are so many parts of the power supply.
Q: LED bulb after the power failure, still glimmer, can last hours or even all day, what is the reason?!
If it is to continue the glimmer of minutes, the main side is the use of resistance and step-down circuit caused by the normal phenomenon. It's very rare for the factory to use this old model to make LED balls. Circuits that run for hours or all day on the side of the LED bubble are out of order. It's not normal to shine for so long. Now most of the LED bulb is using IC constant current supply circuit, no such situation has emerged.
Q: Will the power of the LED bulb grow longer and longer? Why?
The LED bulb does not become more powerful for extended periods of time.
Q: Is it possible to manually weld LED bulb bulbs?
You can ignore the effect of heat conduction and thermal grease, solder is better, I was doing a lot of tests, the thermal conductivity of thermal grease is about 1.2 to 2, aluminum more than 300, thermal grease just to fill the bottom of the LED and the aluminum substrate contact surface gap, you don't fill gaps don't hinder it the normal contact with the aluminum substrate at the bottom of the LED, will be lost, and the use of thermal grease you for about a year will have to replace the thermal grease, only unscrupulous vendors will deceive others say I added thermal grease, heat conduction effect is not fully qualified, in fact, for a long time, the potential will LED light spot the chip inside the loose because of the long-term high temperature, causing the current growing, until completely off
Q: Want to buy a few LED bulb, do not know how to identify the quality of good or bad, ask for solution ~!
See brightness, whether the luminous uniformity, the back of the heat is good?
Q: Want to find common features, unified purchase accessories repair!
The most common problem is that 1, the drive power is broken 2, the light source due to excessive or excessive flow leading to necrosis

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