Vietnam Sunergy Joint Stock Company VSUN405N-108BMH-BW

Mono-c-Si Bifacial

405 W Pmax

37.68 V Voc

13.83 A Isc

31.02 V Vmp

13.07 A Imp

20.79 % eff.

0.778 FF

54 cells

Same test data as VSUN405N-108BMH and 8 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	405.431	W
PTC Power	PTC	382.2	W
Open-circuit voltage	V_oc_ref	37.68	V
Short-circuit current	I_sc_ref	13.83	A
Max-power voltage	V_mp_ref	31.02	V
Max-power current	I_mp_ref	13.07	A
Fill factor	FF	0.778	—
Efficiency (STC)	η	20.79	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.005172	A/°C
Voc temperature coefficient	beta_oc	-0.08949	V/°C
Pmax temperature coefficient	gamma_r	-0.2955	%/°C
NOCT	T_NOCT	45.0	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.28891	V
Light-generated current (ref)	I_L_ref	13.84557	A
Saturation current (ref)	I_o_ref	2.74e-12	A
Series resistance	R_s	0.19915	Ω
Shunt resistance (ref)	R_sh_ref	176.926	Ω
Cells in series	N_s	54	—
CEC Adjust factor	Adjust	0.2874	%

Actions

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Module Specifications

Technology Mono-c-Si

Bifacial Yes

BIPV No

Cells in series 54

Module area 1.95 m²

NOCT 45.0 °C

Temp. coefficient of Pmax -0.296 %/°C

Temp. coefficient of Voc -0.237 %/°C

Temp. coefficient of Isc 0.037 %/°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

10 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 %.