led bulb filament E26 E27 4W
- Ref Price:
-
- Loading Port:
- 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 type | LED Blub |
| Item NO. | CLSB-003-GL4 |
| Power Consumption | 4W |
| Base | E26,E27,B22 |
| LED Source | 4pcs LED |
| Input voltage | AC100-120/AC220-240V |
| Material | Aluminum Alloy+ Clear Glass |
| Dimension | ΦΦ60*100mm |
| Luminance Flux | 480LM |
| Light efficiency | .>100lm/w |
| Emitting Color | Warm white |
| Color temperature | WW 2700K |
| Color rendering index(CRI) | 80Ra |
| Beam angle | 360° |
| 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
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
- Q: LED what is the glue between the aluminum base of the bulb and the cooling aluminum?
- It is best not to direct contact with glue, glue because the thermal conductivity of aluminum than a lot of difference, even a thin layer will reduce the heat out of the speed of the screw can be used to aluminum plate and aluminum fastening together, the contact surface is smooth, when necessary, can use some conductive silicone grease amount
- Q: What's the cause of the noise during the aging of LED bulb bulbs?
- Either AC or DC LED lighting there will be a power module, a small hidden in the lamp body, the daily working state can produce high temperature, if the AC power supply temperature will be higher, because the lamp body appears to flicker, high temperature and long time will lead to the power supply module parts welding, weld or aging, so a lot of alternating current LED lighting the metal shell, to facilitate heat dissipation, the DC power supply is adopted to eliminate the flicker, reduces the electrical power, so the DC temperature should be low.
- Q: Led the bulb is flashing. What's wrong with it? How do you fix it?
- There are several cases of flashing lights:There is one to three flashes when the switch is switched off. This is due to an incomplete discharge of the electrolyte in the power supply.The power supply is flashing fast. This is the quality of the power supply problems, there are many specific reasons.It is found that the design of the power supply is related to the structural design of the lamp due to the insufficient margin of the power supply and the increase of temperature!
- Q: What are the requirements of the LED series inspection specification for bulb bulbs?
- The temperature rise of the finished lamp is not more than 120K. The temperature rise is equivalent to the maximum value of 60W incandescent lamp.
- Q: What advantages does LED bulb replace energy saving lamp?
- The response time is fast, the energy saving lamp is millisecond, and the LED light is nanosecond
- Q: What brand of LED bulb is good in quality?
- See shape. Incandescent bulbs are usually pear shaped, so the bulb should be pear shaped. That's easy to do. But incandescent lamps are all glass products, and because LED requires heat radiation, aluminum alloys are usually used as housings, because of their low cost, easy processing, and good thermal conductivity. The size of the aluminum shell determines the heat dissipation and also determines the life span.
- Q: LED bulb is broken. The luminous patch is not bad. Can it be made into USB lamp?
- Look at the LED in the LED bulb. Several LED are connected in series. Several groups are connected together, and then the voltage is estimated. Then the power of the bulb is divided by the voltage of the LED bulb to calculate the required current. Select the appropriate LED drive circuit. The average USB output current of the computer is only 100mA~500mA. The power is not enough to make the LED light achieve normal brightness, or it may damage the USB interface. It's better to use the USB charger interface. DIY needs circuit knowledge.
- 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: Secret LED bulb bubble price difference why so big?
- Component material. Whenever cheap prices are shoddy, without exception
- Q: What does "A19" mean in LED A19 bulb?
- A stands for bubble type, A hemisphere bubble19 the numbers in the back indicate the size of the bulb (mm in diameter)On the market LED bulb generally has: hemisphere bubble lamp, A15, A17, A50, A60Global bubble G45, G55, G80, G120 and so on
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led bulb filament E26 E27 4W
- Ref Price:
-
- Loading Port:
- Shekou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 5000/pcs pc/month
OKorder Service Pledge
OKorder Financial Service
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