wholesale led bulb 3W E27

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TT OR LC
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Supply Capability:
5000/pcs pc/month

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Product Description:

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

Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:Why can't the voice switch control the time of the LED bulb?
The power of LED bulb is much less than that of incandescent lamp, and the control loop and light bulb of simple sound control lamp are connected in series, and the load is different and the time delay is different
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 driving IC used in LED bulb?
M8900 can replace BP3309, SY5810 SY5840 MT7930, ME 8316, without modifying the circuit used directly.M8900Is an original side feedback, with single stage active PFC high precision LED constant current control chip, M8900 integrated single level active PFC line, can achieve higher power factor and very low total harmonic distortion, chip canThe quasi resonant mode is achieved, thereby achieving higher efficiency and reducing switching losses. M8900 features multiple protection functions to ensure system reliability, including LED open circuit protection, chip overvoltage protection, and UVLO deficiencyVoltage protection, LED short circuit protection, cycle by cycle current limiting, etc..
Q:Will the power of the LED bulb grow longer and longer? Why?
Voltage problems, as well as unstable factors.Long time no change, should
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?
Of course, the hotter the better, because for the same material, the hotter it is, the more heat the LED chips use, the less good the quality of the chips. The thermal characteristics of lamps is mainly to measure the junction temperature of LED Shenglai rather than the temperature of heat sink. Aluminum is commonly used in heat dissipation materials.
Q:Detailed description of LED bulb lamp
Healthy LED is a green light source. The LED lamp is driven by DC without flicker. Without infrared and ultraviolet components, without radiation pollution, it has high color rendering and has a strong luminous directionality, good dimming performance and no visual error when the color temperature changes
Q:What's the reason for the LED bulb strobe?
Currently on the market with single stage PFC driver circuit, there will be strobe, causing the flash because the ripple is too large. Single stage pFC circuits are not possible
Q:Is it possible to manually weld LED bulb bulbs?
If you can guarantee that you can add thermal grease just fill the gap without obstructing the normal contact, it is useful, but this process is very difficult for you to do, and the theory can improve the thermal efficiency of thermal grease, but actually you are not up to the process it is possible to reduce the thermal efficiency, you added more is to seek psychological comfort, you can on the heating plate welding of light, with one side of the thermal grease solder, such thermal effect is better
Q:Where can LED bulb be used?
LED bulb is generally civilian, living room, study room, kitchen, bathroom and so on
Q:In a bulb, the ambient temperature of the LED is LED, the temperature of the air in the bulb, or the temperature of the aluminum substrate
The lamp is normal body temperature measurement temperature lamp, lamp heat sink temperature is the key, if the heat do good, heat sink temperature is close to the junction temperature, but the temperature are generally measured lamp pin temperature, plus a rise coefficient estimation of heat sink temperature, so as to estimate. The temperature of the lamp. The temperature of the aluminum substrate and the heat sink is relatively surface, and the superficial and relatively useful temperature depends on the junction temperature, which is related to the life of the LED. So the temperature near the pin or heat sink is more realistic.

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