Downbeat Long Pulse Width Module Tester
Dimensions 290 × 180 × 105 cm
Measurable parameters

I-V, P-V curve, short-circuit current Isc, open-circuit voltage Voc, maximum power Pmpp, cell efficiency Eff, fill factor FF, current at maximum power point Impp, voltage at maximum power point Umpp, series resistance Rser, parallel resistance Rshunt, solar cell surface temperature, Iuld (current at fixed point voltage), Puld (power at fixed point voltage). (power at fixed point voltage), where Uld can be set arbitrarily

Measurable module sizes


Test speed

240 pcs/ h

Flash time

10~200ms, adjustable

Lamp life

>100,000 flashes (10ms flash time)

Irradiance range


Spectral Matching

0.875-1.125 (Grade A+)

Irradiance Instability STI

≤0.25% (Grade A+)

Irradiance Instability LTI

≤1% (Grade A+)

Irradiance inhomogeneity

≤1% (Grade A+)

Spectral range (IEC 60904-9:2020)


Repeat test accuracy(40 Flashes)


Measurement range

Voltage range: 1v/10v/50v/100v/150v/200v
Current range: 0.25A/1A/5A/10A/20A

Measurement resolution

16bit (Measurement resolution of 0.003%)

Lamp type

Xenon lamp

Operating mode

Single pulse

Working power supply

200~240V, 10A, 50/60HZ, Single-phase

Equipment size

Light box: 2900x1800x1050mm
Electrical cabinet: 800x600x1800mm

Equipment weight

Light Box: 0.5t Electrical cabinet: 0.28t