Good Quality Wholesale 540W 550W 560W Solar Panel for Residential Houses

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Good Quality Wholesale 540W 550W 560W Solar Panel for Residential Houses

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Product Description

Product Parameters

Type	SUN 540-DE21M	SUN 545-DE21M	SUN 550-DE21M	SUN 555-DE21M	SUN 560-DE21M
Maximum Power(Pmax)	540W	545W	550W	555W	560W
Maximum Power Voltage(Vmp)	41.65V	41.80V	41.95V	42.10V	42.25V
Maximum Power Current(Imp)	12.97A	13.04A	13.12A	13.19A	13.26A
Open-circuit Voltage(Voc)	49.50V	49.65V	49.80V	49.95V	50.10V
Short-circuit Current(Isc)	13.85A	13.92A	13.98A	14.04A	14.10A
Module Efficiency STC(%)	20.90%	21.10%	21.30%	21.50%	21.70%
Operating Temperature(°C)	-40°C~+85°C
Maximum system voltage	1500VDC(IEC)
Maximum series fuse rating	25A
Power tolerance	0-3%
Temperature coefficients of Pmax	-0.340%C
Temperature coefficients of Voc	-0.265%C
Temperature coefficients of Isc	0.05%C
Nominal operating cell temperature(NOCT)	45±2°C

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Frequently Asked Questions

What are the primary power options available for these solar panels?

These modules are available in five power output configurations: 540W, 545W, 550W, 555W, and 560W, designed to suit various residential and commercial requirements.

What is the efficiency range of this series of solar panels?

The module efficiency varies from 20.90% (for the 540W model) up to 21.70% (for the 560W model) under Standard Test Conditions (STC).

Can these solar panels operate in extreme weather environments?

Yes, these solar modules are engineered to operate reliably in a wide temperature range from -40°C to +85°C.

What is the maximum system voltage allowed?

The maximum system voltage is rated at 1500VDC (IEC), which supports efficient system layout designs and lowers overall BOS costs.

What are the temperature coefficients of these solar modules?

The temperature coefficient of Pmax is -0.340%/°C, the Voc coefficient is -0.265%/°C, and the Isc coefficient is 0.05%/°C, providing exceptional stability in warmer conditions.