led bulb global e27 4w TUV-GS, CE, RoHs

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Product Description:

Product Name:B45AP 4W E14/E27 323LM LED LAMP HOT SALE TUV-GS CE ROHS PASSED





Description:



Model:

B45AP

Input Power:

4W

Input Voltage:

220-240V

Working Frequency:

50Hz

Lumens:

323lm

CCT:

2900-7000K

CRI:

>80Ra

Beam Angle:

270 degree

Housing Material:

Aluminium Plastic  

PF:

>0.5

LED Working Life:

30000hrs

Working Temperature:

-20°C to   +50 °






Advantage:

1.Longer life


2.High luminous efficiency


3.Pure light color


4.Energy-saving


5.No radiation safe for body


6.No flickering & good for eyes


7.Low heat generation


8.Completly replace the incandescent bulb


9.Good Service:We treat client as friend


10.Good Quality:We have strict quality control system. Good reputation in the market.


11. Good heat dissipation and  unbreakable.


Our Innovation:

Quality & Service At YYLighting, our first priority has always been providing our clients with great quality products and superior customer service.


Quick LeadTime We're dedicated to provide the quickest turnaround times and work very hard to ensure that all of your deadlines are met.


Unbeatable prices We continusly strive to find ways of reducing our production costs, and passing the savings over to you.


Brand Awareness The goal of any strong brand is achieving a level of awareness that instills the idea of quality and value into all of your potential customers.



Application:

1.Residential Buildings,  Home


2.Office, Meeting Room


3.School, Library


4.Factory, Warehouse


5.Hotel, Casino


6.Parking Garage


7.Hospital


8.Commercial Center


9.Supermarket, Shopping mall





Trade Terms:

1>Sample lead time: 5-7days


2>Bulb lead time: 3-4 weeks


3>Payment: T/T, western Union or Paypal


4>Shipping: By Express(EMS, DHL, UPS etc), By Air or By Sea


5>Logo/Design: According to customers' requirement



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Q:Will the power of the LED bulb grow longer and longer? Why?
In general, LED energy-saving lamps (including LED bulb bulbs) use a constant current drive that does not change the magnitude of the current with time or temperature, so it does not become more powerful as it grows for longer periods of time.On the other hand, if because of long time use leads to LED lamp temperature rise, according to the electrical properties of semiconductor, the PN junction voltage will also decreases with increasing temperature. Then, when the current is constant, a drop in the voltage drop means a decrease in power consumption, although the reduction is very small.
Q:How to choose the bulb power?
The basic types of bulb power are divided into two types: isolated and non isolated
Q:Is it possible to manually weld LED bulb bulbs?
This is what you do very mature products, the most simple aging, is like this
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 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 does the LED bulb patch mean?
In order to obtain high power LED light source, high brightness, the manufacturers to power direction in LED chip and package design. At present, the LED package can withstand W power has emerged. For example, Norlux series of high-power LED packaging structure for the hexagonal aluminum plate as base (the conductive) multi chip combination. The base diameter of 31.75mm, light emitting area is located in the central part, a diameter of about mm (0.375 * 25.4), can accommodate 40 LED tube core, at the same time as the aluminum heat sink. This package uses conventional tube core combination of high density packaging, high luminous efficiency, low thermal resistance, high in light output power flow under high electric. Is a kind of promising LED solid state light source.
Q:The difference between an incandescent lamp, an energy-saving lamp, and an energy-saving LED bulb
The light produced by the three is different. From the lighting point of view, incandescent light can generally emit yellow light, and energy-saving lamps can not only send yellow light, but also white light, etc., and LED lights can be issued according to the needs of a variety of light, decorative lighting is very good.
Q:What are the types of LED bulb?
The LED bulb replacement use convenient, makes this type of products are widely accepted by users by the family, under the same illumination conditions choice to replace the traditional lighting.
Q:LED what is the plastic shell of the bulb? What plastic material is better? What do you need to pay attention to?
LED is the most important heat, light will not be so serious, the thermal conductivity is relatively high Aluminum Alloy, so LED manufacturers usually choose to use aluminum shell
Q:LED bulb with what type of LED beads?
The LED bulb is mainly white and warm white two colors are white, the temperature is generally 6000-6500K color, the color of the sun light at noonWarm white temperature is 2700-3000K, yellow, similar to the sunset color temperature.

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