$2 Philips 6 W LED bulb Review

 Philips 6 W LED bulb Review

 Today I bought a new style Philips LED bulb in local store. It spends me 21rmb ($3.5). To most of us, the cost is high, compare to CFL and Incandescent Bulb!  But when you find the same type in the Ecommerce. It spends less, it’s price about 14 rmb(about $2.0). Damn! When I look at it enclosure, this type of LED bulb may be new version. As we know the IEC/EN standard has been revised, the market changed a lot.

What is more, I do search this LED bulb, but can not find it. This new version seems do not sell in other country? Is that real?

 Rating:

Brand Philips
Model BPZ500-S730E27U- 9290012044A
Input Voltage 220 -240 Vac
Input Current 55 mA
Power 6 W
Power Factor N/A
CCT 3000 k
Frequency 50/60 Hz
Weight 48.3 g(Incandescent: 31.0 g)
Lumen 500 lm (Equal: 10 W CFL, 44 w Incandescent)
Lifetime 8000 h
Dimming No
Standard Rohs/GB 24906(IEC.EN 62560)/IEC 62471 (EMC?)
Dimension  59 x 106 mm


Package

 Philips 6 W LED bulb Review

Package Front Side

Philips 6 W LED bulb Review

Package Broad Side

Philips 6 W LED bulb Review

Package Broad Side

Philips 6 W LED bulb Review

Package Broad Side

Philips 6 W LED bulb Review

Package Top Side

Philips 6 W LED bulb Review

Package Inside Side

From the package, it is good among the LED bulb brand. most brand do not show the LED bulb data, do not tell the certificate of the product.

The Input Test

Here you can find the testing data.

Input Voltage(V) Input Current(mA) Power (W) PF
100 0.90 5.9 0.66
120 0.81 6.3 0.64
220 0.50 6.1 0.53
230 0.49 6.0 0.53
240 0.49 6.1 0.53
254 0.48 6.1 0.51

Power Meter Test

$2 Philips 6 W LED bulb Review

It matches the rating on the package from the Input test result, in the China Main Market, you can not find the good quality. Many brands sell bad products.

Now I Know why do not sell in the developed country!

Check the key thing is Power Factor! Less than 0.6 if the input voltage is 220 – 240 Vac. The requirements of the Energy Star is more than 0.8, the CEC is higher than 0.9! Should China Government do more thing for the energy!

Check the requirement of the EU ERP, can not meet the standard, such as lifetime.

 Thermal Test

 $2 Philips 6 W LED bulb Review

 We perform the thermal test on the LED bulb.  The lamp base is up, running 2 hours, the enclosure reaches 50°C at ambient temperature 18°C. It can be bearable if you touch the housing.

Performance Test

 Now no money for this part.

Teardown

 By using a flat blade screwdriver, slowly, carefully, the PMMA diffuser tear off. When you open this, some bad smell come to you, the smell may from the glue.

When you look at the LED part, I got confused the LED board. What the hell of that.

 $2 Philips 6 W LED bulb Review

 Here is a closeup of the LEDs on their white PCB.

When turning the light on, you can see the some SMD components there. There are 3 resistor, 2 capacitors, 1 diode and 1 rectifier. Why? If you have tore down some LED bulbs, you find this strange. Not so many manufactures would design like this! It is integrated LED board. All the components are integrated on the PCB. In fact, the tech design is not mature. The LED board is attachted by 3 screws. I can not find any UL File Number in the LED board. The LED board looks without UL certificate.

 $2 Philips 6 W LED bulb Review

 A close View

$2 Philips 6 W LED bulb Review

 I used the sharp-nose pliers to crush the E27 bulb’s base. And remove the button on the metal screw. Be carefully, do not hurt yourself. There has two small wires(may be 24 AWG wire) connected to the metal parts of the screw base, one to the tip of the base and one to the metal wrap.

$2 Philips 6 W LED bulb Review

 Now the LED bulb stand up. You can see inductors and alimuimn capactior in side. The fuse resistor in on the L wire.

$2 Philips 6 W LED bulb Review

 After spending 5 – 10 mins, finally I toke the LED board off.  There are lots of glue between the LED board and metal part of housing. As you can see the metal shape in below picture. Now there are 3 bulges outside the housing.

$2 Philips 6 W LED bulb Review

 Here is the rectifier. The number is MBL10SDE45.

$2 Philips 6 W LED bulb Review

 There are 2 capactiors, a inductors and 1 triode. You can find the LED PCB is single-sided copper-clad laminate, molded circuit board.

$2 Philips 6 W LED bulb Review

 The triode view.  Number is BP9912C 15F34A F46P from Bright Power Semiconductor.

$2 Philips 6 W LED bulb Review

This bulb  circuit is similar with the typical application circuit.  Here is Typical application circuit for BP9912C.

 C:\Users\waston.chen\Desktop\$2 Philips 6 W LED bulb Review.png

Would you want to buy this??

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