V-TAC SKU 11897 is a monocrystalline photovoltaic module with a power of 400W and dimensions 1722x1134x30mm. The nominal power per surface is equal to 205W/m²
 Inside each photovoltaic solar panel there are photovoltaic cells capable of transforming solar energy into electrical energy, thanks to the photovoltaic effect. Each cell is 182x91mm in size. On each module there are 108 cells arranged in an 18x6 matrix. The cells are made with the highest performing German technology, even in low light conditions, with a self-heat reduction system that prevents energy loss.
 The thermal coefficient of the photovoltaic module is -0.34%/°C, compared to the temperature of 25°C. This means that if the photovoltaic panel works for example at 34°C, the loss of performance in terms of power will be equal to 3.4%.
 Tüv NORD certified. IP67/IP68 junction box with 3 diodes, 2 output cables of length 1.1 meter (110cm) 4mm² with MC4 connector, anodized aluminum frame, Wind/Snow: 2400Pa/5400Pa. Module efficiency of 20.46%. 25 years guarantee on 85% producibility, linear efficiency.
 The photovoltaic modules can be connected in series (the voltage is added) or in parallel (the current is added), based on the needs and the maximum values sustainable by the MPPT charge controller: see maximum input voltage and current for each MPPT, reported on the technical data sheet of the hybrid or grid photovoltaic inverter.