Vietnam Sunergy Joint Stock Company VSUN420N-108BMH-BT

Mono-c-Si Bifacial

420 W Pmax

38.27 V Voc

13.65 A Isc

32.38 V Vmp

12.97 A Imp

21.51 % eff.

0.8039 FF

54 cells

Same test data as VSUN420N-108BMH and 3 other listings. CEC lists each frame, color and backsheet version as its own listing.

IV & PV Curves at STC (1000 W/m², 25 °C)

IV Curves at Multiple Conditions

Irradiance sweep at 25 °C

Temperature sweep at 1000 W/m²

Single-Diode Model Parameters

Source: California Energy Commission module list · retrieved via SAM library · energy.ca.gov · All data sources

Parameter	Symbol	Value	Unit
Nameplate (STC)
STC Power	STC	419.969	W
PTC Power	PTC	396.4	W
Open-circuit voltage	V_oc_ref	38.27	V
Short-circuit current	I_sc_ref	13.65	A
Max-power voltage	V_mp_ref	32.38	V
Max-power current	I_mp_ref	12.97	A
Fill factor	FF	0.8039	—
Efficiency (STC)	η	21.51	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.006211	A/°C
Voc temperature coefficient	beta_oc	-0.089973	V/°C
Pmax temperature coefficient	gamma_r	-0.2922	%/°C
NOCT	T_NOCT	45.5	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.32899	V
Light-generated current (ref)	I_L_ref	13.65668	A
Saturation current (ref)	I_o_ref	4.21e-12	A
Series resistance	R_s	0.12718	Ω
Shunt resistance (ref)	R_sh_ref	260.009	Ω
Cells in series	N_s	54	—
CEC Adjust factor	Adjust	4.9487	%

Actions

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Module Specifications

Technology Mono-c-Si

Bifacial Yes

BIPV No

Cells in series 54

Module area 1.9527 m²

NOCT 45.5 °C

Temp. coefficient of Pmax -0.292 %/°C

Temp. coefficient of Voc -0.235 %/°C

Temp. coefficient of Isc 0.046 %/°C

CEC list On the 23 Jun 2026 list

Parameters from 23 Jun 2026 list

Measured Data

No measured data yet for this module.

Same Test Data

5 listings with identical nameplate test data, one per frame, color or backsheet version.

Similar Modules

Other manufacturers, same technology and cell count, power within 3 %.