LED BULB LIGHT E27;E14 5W;7W GOOD QUALITY

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Light Source:	LED	Item Type:	Bulb Lights	LED Light Source:	High Power LED
Type:	bulb,LED bulb	Input Voltage(V):	AC220V/50Hz	Lamp Power(W):	5
Lamp Luminous Flux(lm):	430	Lamp Luminous Efficiency(lm/w):	80	CRI (Ra>):	70
Color Temperature(CCT):	Warm White	Working Temperature(℃):	-20 - 40	Working Lifetime(Hour):	50000
Lamp Body Material:	Plastic	Certification:	CE,RoHS	Base Type:	E27
Place of Origin:	Guangdong China (Mainland)	Brand Name:	CMAX	Model Number:	08BLK085
PF:	0.9	Warranty:	2 years	G.W.:	4.2kgs
Quantity/carton:	50pcs	Export carton size:	650335135(mm)	Efficiency(Lm/W)::	430lm
Irritation angle:	140	Power:	5w	Name:	Good Quality 5W E27 led light

Q:What does "A19" mean in LED A19 bulb?: A19 is the European A60: represents the outer diameter 60mm=19/8*25.4=60.325mm, such as the diameter of the A19 bulb. "D=19*1/8", multiplied by 25.4, is the diameter of the bulb in mm units. The source of this formula is the same as the T8 tube: "X" in Tx means that the diameter of the tube is x times 1/8 inches, so the diameter of T8 is 1/8 inches x 8=1 inches, or 25.4mm

Q:What are the types of LED bulb?: According to the radiator shell to points, can be divided into plastic shell, aluminum radiator and ceramic shell, in general, the ceramic shell heat radiator is best, but the price is relatively expensive, the widespread use of aluminum shell, moderate price, good heat dissipation performance

Q:Want to find common features, unified purchase accessories repair!: Common problems, a lamp is broken, the heat is not good cause, most likely it is a bad driver. As for the aluminum substrate, it should not be bad

Q:What are the characteristics of LED bulb?: Life is more than ten times longer than incandescent, power consumption is 1/2 of ordinary light bulbs, fast response, generally 10-7 - 10-9s, color clear, recognizable performance, good vibration resistance, now the price of LED lamp is relatively high

Q:LED bulb lamp. Is there a good drive or no drive? Is the lamp of good or integrated?: LED bulb: directly driven by not using AC-LED light source, light effect of the whole lamp life (compared with driving security; some) integrated LED relative heat transfer to the high requirements, high cost, simple assembly, do a single power source in low cost, high light efficiency.

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: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!: Can reach 90% of the light, can not see the inside of the lamp

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.As LED chip light emitting device of the PN junction has a negative temperature characteristic: with the increase of temperature, the conducting voltage drop caused current rise, therefore, when the LED bulb is lighted with the temperature rise of power consumption will be increased. But good circuit and parameter design can reduce the influence of this temperature.

Q:LED bulb lamp drive power electrical connection, will delay a few seconds before the lamp light, and power creaks, who know what it is!: How many seconds delay? It won't take so long. How many bulbs do you usually soak in 0.5 seconds? A squeaky noise is usually a transformer or inductance whistle, and at least it shows a poor manufacturing process.

Q:Want to buy a few LED bulb, do not know how to identify the quality of good or bad, ask for solution ~!: Plastic bulb lamp, I have done it myself, this gadget specializes in low-end market, it is recommended not to use, used well, used for a long time, used poorly, minutes of effort have to hang.

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