4 Watt LED Bulb

We are testing a 4 Watt LED Bulb at 220 Volts UPS AC input. We are using Embuilt SPEA-1 to test the Bulb properties.  4 Watt LED Bulb for Harmonic analysis using Embuilt SPEA-1
Specifications – 4W, 27mA, 220-240 VoltsAC, 50Hz 4 W LED Bulb

led driver testing, SMPS Testing, 4 Watt LED Bulb, 4 Watt LED Bulb Testing,SPEA-1 Main page for 4 Watt LED Bulb

When power is on the following results are found –

Vrms- 222.1 Volts VTHD% -4.0%
Arms -23.37mA ATHD% -51.2%
Watt -3.825Watt V3rd Harmonics Value – 6.329 Volts

Here we can see that VTHD is 4% which means UPS Supply has 4% distortion in Voltage. It also effect the wave form of UPS Supply or we can say that Voltage waveform is not 100% sine wave(Ideal condition).

ATHD % is 51.2 which means LED Driver(Internal in LED Bulb) distorted the AMPS waveform by 51.2 %. It also has effect of Voltage THD. 

We can also see the 3rd harmonics of Voltage is 6.329 Volts. 

led driver testing, SMPS Testing, 4 Watt LED Bulb, 4 Watt LED Bulb Testing,SPEA-1 Main page for 4 Watt LED Bulb 

Here we can see the 3rd harmnonics of voltage in % of first harmonics. 3rd Voltage harmonics is 2.8% of Vrms Harmonics. 

Here we note that ideally first harmonics is to be equal of Vrms and other order harmonics are to 0.

So we need to minimize the harmonics.

led driver testing, SMPS Testing, 4 Watt LED Bulb, 4 Watt LED Bulb Testing,SPEA-1 Main page for 4 Watt LED Bulb

Here we can see the 3rd harmonics Value of Amps. It is 8.374mA it has another waveform with Amps(Current) level of 8.374mA.

 

led driver testing, SMPS Testing, 4 Watt LED Bulb, 4 Watt LED Bulb Testing,SPEA-1 Main page for 4 Watt LED Bulb

In the above image 3rd Harmonics of Amps shows in display 6. It is 35.6% of Arms (23.54mA).

Other parameters can also seen on SPEA-1.

You can also view readings on the SPEA-1 Software.

led driver testing, SMPS Testing, 4 Watt LED Bulb, 4 Watt LED Bulb Testing,SPEA-1 Software for 4 Watt LED Bulb

Softare is connected to SPEA-1 for real time data viewing and reporting.

4 Watt LED bulb Voltage Harmonics Spectrum

Above is the voltage harmonics spectrum of 4 Watt LED Bulb. All values are given in % of Vrms.

4 Watt led bub Amps Current Harmonics Spectrum

Above is the Amps(Current) harmonics spectrum of 4 Watt LED Bulb. All values are given in % of Arms.

Harmonics report is also generated for 4W led bulb which contains the parameter valuews with Harmonics spectrum.

Harmonics Spectrum Report of 4 W Led Bulb

Click here to download the harmonics report of 4W LED Bulb.

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(Updated: December 10, 2018)