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Test Report on LED Tube Lightsupplied by ADEX CORPORATION LIMITED.

Baitul Abed (3rdFloor), 53 Purana Paltan, Dhaka-1000. Bangladesh

Subject : Test Report for 8W LED Tube Light

Rating : 8W, 100-280VEquipment Used to Test the Solar LED Tube Light 4W, 12V DC

1. Digital Oscilloscope2. High sensitive Digital Multimeter3. Power Supply4. Digital Lumen (lux) Meter5. Variable DC Power Supply6. Light intensity measurement setup

OBSERVATION

SymbolTest

ParameterTest Condition

Min Typ. Max. TestFindings

Unit

Lux Brightness

Measured at 1 meter

distance from the source:

Viewing angle = 0 deg.

170 182 199

Lux

Viewing angle = 30 deg. 150 160 196

Viewing angle =120 deg. 55 65 153

PinPower

Consumption

At operatingvoltage 85V-

265V, AC

85V 8.5 9.0 9.5 8.16

Watt220V 9.46

253.8V 9.64

EfficacyLuminous

efficacy

Measure total Lumen and

Power

95 100111 Lumen/Watt

CC

Constant

Current of theDriver

Use resistive load

and vary the resistor

value (75-100 Ohm)and measure the

Load Current

75 180 200 220 40

mA85 40

100 40

P0No Load

Power

No Load at the output of

the driver

0.5 0.88 Watt

Temp.

Temperature

rise at the

Tube Surface

Measure the body

temperature of the tube

after 1 hour of operationand calculate the difference

from Ambient

Temperature

2011 Deg.C

8/13/2019 Adex tube 8w.docx

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Test Report on LED Tube Lightsupplied by ADEX CORPORATION LIMITED.

Baitul Abed (3rdFloor), 53 Purana Paltan, Dhaka-1000. Bangladesh

Experimental Set-up:

a

Figure 1: a) Measurement of Light along yz

plane (perpendicular to tube axis)

Tube axis x

y

z

Perpendicular

to tube axis,that is yz

plane

0

90

180

b

00

3450

xy Plane

150

44cm

30

0

Tube axis x

y

Figure 1: b) Measurement of Light along

xy plane (parallel to tube axis)

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Test Report on LED Tube Lightsupplied by ADEX CORPORATION LIMITED.

Baitul Abed (3rdFloor), 53 Purana Paltan, Dhaka-1000. Bangladesh

Comment: The overall performance of the supplied LED Tube Light is satisfactory.

Tested by:(Dr. Md. Nurunnabi Mollah)

Professor

Department of EEEKUET, Khulna.

Experimental Data:

Angle XY Plane YZ Plane

0 41 56

15 450 331

30 804 522

45 950 774

60 998 854

75 1016 950

901028 987

105 1010 943

120 994 860

135 938 756

150 784 542

165 419 340

180 39 63

195 34 48

210 30 45

225 29 40

240 30 36

25532 34

270 29 27

285 32 35

300 31 38

315 33 43

330 34 46

345 36 48

360 36 50

(Md. Osman Goni Nayeem)

Lecturer

Department of EEEKUET, Khulna.

.

Graphical Representation:

0

200

400

600

800

1000

1200

0 30

60

90

120

150

180

210

240

270

300

330

360

Inte

nsity

(Lux)

Angle (Degree)

XY Plane

0

200

400

600

800

1000

1200

0 30

60

90

120

150

180

210

240

270

300

330

360

Intensity

(Lux)

Angle (Degree)

YZ Plane