Testing of 0.5 Watt LED Bulb


We are testing a 0.5 Watt LED Bulb at 220 Volts UPS AC input. We are using Embuilt SPEA-1 to test the Bulb properties. 
Specifications : 230 Volts AC, 50 Hz, 0.5 W

Voltage 3rd Harmonic value of 0.5 Watt led bulb by SPEA-1

When power is on the following results are found –

Vrms- 223.0 Volts VTHD% -1.4%
Arms -18.53mA ATHD% -19.7%
Watt -0.332Watt V3rd Harmonics Value – 0.577 Volts

Here we can see that VTHD is 1.4% Supply has small 1.4% distortion in Voltage.

ATHD % is 19.4 which means LED Driver(Internal in LED Bulb) distorted the AMPS waveform by 19.4%. It also has effect of Voltage THD. 

We can also see the 3rd harmonics of Voltage is 0.533Volts. 

Voltage 3rd Harmonics % of 0.5 Watt LED Bulb by SPEA-1

Here we can see the 3rd harmnonics of voltage in % of first harmonics. 3rd Voltage harmonics is 0.336% of Vrms Harmonics. 

Amps (Current) 3rd Harmonics Value of 0.5 Watt Led Bulb by SEPA-1

Here we can see the 3rd harmonics Value of Amps. It is 1.630mA it has another waveform with Amps(Current) level of 1.630mA.

AMPS(Current) 3rd Harmonics % of 0.5 Watt LED Bulb

In the above image 3rd Harmonics of Amps shows in display 6. It is 8.6% of Arms (18.45mA).

Other parameters can also seen on SPEA-1.

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

Voltage Spectrum of 0.5 W LED Bulb generated by SPEA-1

Above is the voltage harmonics spectrum of 0.5 Watt LED Bulb. All values are given in % of Vrms.

Current Harmonics Spectrum of 0.5 Watt LED Bulb generated by SPEA-1

Above is the Amps(Current) harmonics spectrum of 0.5 Watt LED bulb. All values are given in % of Arms.

Harmonics report is also generated for 0.5 Watt Led bulb which contains the parameter values with Harmonics spectrum.

Download Harmonics Spectrum Report of 0.5 Watt LED Bulb

Download Harmonics Spectrum Report

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(Updated: Jan 21, 2021)