Win Win Precision Technology Co Ltd WST-405MGXB-E5

Mono-c-Si

406 W Pmax

37.4 V Voc

13.78 A Isc

31.4 V Vmp

12.92 A Imp

21.35 % eff.

0.7872 FF

54 cells

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	405.688	W
PTC Power	PTC	380.6	W
Open-circuit voltage	V_oc_ref	37.4	V
Short-circuit current	I_sc_ref	13.78	A
Max-power voltage	V_mp_ref	31.4	V
Max-power current	I_mp_ref	12.92	A
Fill factor	FF	0.7872	—
Efficiency (STC)	η	21.35	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.005512	A/°C
Voc temperature coefficient	beta_oc	-0.091256	V/°C
Pmax temperature coefficient	gamma_r	-0.319	%/°C
NOCT	T_NOCT	45.0	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.339	V
Light-generated current (ref)	I_L_ref	13.79742	A
Saturation current (ref)	I_o_ref	9.96e-12	A
Series resistance	R_s	0.13705	Ω
Shunt resistance (ref)	R_sh_ref	108.44	Ω
Cells in series	N_s	54	—
CEC Adjust factor	Adjust	8.5397	%

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 54

Module area 1.9 m²

NOCT 45.0 °C

Temp. coefficient of Pmax -0.319 %/°C

Temp. coefficient of Voc -0.244 %/°C

Temp. coefficient of Isc 0.040 %/°C

CEC list On the 23 Jun 2026 list

Parameters from 23 Jun 2026 list

Measured Data

No measured data yet for this module.

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