wholesale led bulb 3W E27

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Loading Port:: Shekou

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 5000/pcs pc/month

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LED Bulb Light Waterproof 9W, CRI80, 60W incandescent replacement, UL

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 type	LED Blub
Item NO.	CLSB-001-SDMD
Power Consumption	3W
Base	E26,E27,B22
LED Source	15pcs Epistar SMD2835
Input voltage	AC88-265v
Material	Aviation aluminum+ PC cover
Dimension	Φ50*90mm
Luminance Flux	240-260LM
Light efficiency	90lm/w
Emitting Color	Warm White,Nature White,Cool White
Color temperature	WW:3000-3200K NW:4000-4500K CW:6000-6500K
Color rendering index(CRI)	75Ra
Beam angle	140°
Work Frequency	50 / 60Hz
Working Temperture	-20~ 40 degrees Celsius
Life Span	40,000 hrs
Dimmable	Yes
Certification	CE&RoHS
Warranty	2 years
Equal to conventional incandescent bulb	25W

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

wholesale led bulb 3W E27

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 maintance≥91.8% 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

wholesale led bulb 3W E27

Q: Where can LED bulb be used?: LED bulb is a new type of energy saving lamp to replace traditional incandescent bulb. The traditional incandescent lamp (lamp) of high energy consumption, short service life, in the global resource environment, has been gradually by governments to ban the production, instead is the product of electronic energy-saving lamp, electronic energy-saving lamp while improving the energy saving effect, but because of heavy metals using a lot of pollution of the environment, trend against the environment protection.

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: 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 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: 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: 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 power of the LED bulb grow longer and longer? Why?: Could you tell me the measurement method? - how about the side current and voltage? Or, whether direct measurement of active power under mains power supply?Also, can you tell me the circuit of LED bulb? DC power supply or AC power supply? Constant current module drive or RC current limiter? If the power supply is 12 volts low, is the resistor only current limiting?I feel something doesn't make sense......In one case, the longer the duration of the LED bulb, the greater the power:In some advanced LED bulb bulbs, an anti impact "slow start" circuit is added to the design, and a NTC (negative temperature coefficient) resistor is incorporated into the LED power supply circuit.Because of the larger resistance of NTC in cold state, the current of LED is smaller and the power is relatively small;With the use of electricity LED bulbs, NTC resistance temperature gradually increased, the resistance is reduced, the current of LED is also increased, so the power LED bulb also increases, temperature stability, until NTC resistance unchanged so far.

Q: LED bulb lamp. Is there a good drive or no drive? Is the lamp of good or integrated?: LED bulb lamp, are driven by a power of the ordinary small beads, driving is very simple only rectification, filtering, limiting the number of components is another large power SMD beads, this drive is more troublesome, SMT SMD components, and double plate, both have the element.

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)