Victron BlueSolar Monocrystalline Solar Panel 12volt 30W Victron panels have a low voltage temperature coefficient that improves high temperature operation. Exceptional low-light performance and high sensitivity to light across the entire solar spectrum. 25-year limited warranty on power output and performance. 5-year limited warranty on materials and workmanship. Waterproof multifunctional junction box ensures a high level of safety. High performance bypass diodes minimize power loss caused by shadowing. Advanced EVA (Ethylene Vinyl Acetate) encapsulation system with three-layer rear material meets the most stringent safety requirements for high voltage operation. A strong, anodized aluminum frame makes the modules easy to mount on roofs using a variety of attachment systems. Top quality, high transmission capacity tempered glass improves rigidity and impact resistance. High power models with pre-wired quick connection system with MC4 (PV-ST01) connectors Nominal Power: 30W Voltage Vmpp: 18,7V (Max voltage from panel loaded) Voltage Voc: 22,87V (Voltage from panel unloaded) Current at max power ImPP: 1,61A Current at short circuit Isc: 1,76A Good to know! Parallel connection of panels. When connected in parallel, the current increases, the voltage is determined by the solar panel with the lowest voltage. Use solar panels of the same nominal voltage when connecting in parallel. For example, you can supplement an older system with another panel regardless of wattage. Always check that the regulator can handle the total power of the system. With parallel connection, the efficiency of the solar cell will be lower. The system is not sensitive if any panel is shaded, but the system continues to supply power to the panels that are hit by the sun. The panels can be placed in different directions. Keep in mind that larger cable size is needed as the voltage in the system is lower than in series connection. Feel free to use the Victron Energy cable calculator in the Victron Toolkit app to choose the right cable size. When connected in series, the system voltage increases and the current is determined by the solar panel with the lowest current. It is therefore important that solar panels in series have the same nominal current. It is possible to connect a 12V solar panel in series with a 24V solar panel as long as they have the same current. Use an MPPT regulator, the effect can be up to 25-30% higher than with a PWM regulator. Higher efficiency than with parallel connection. With series connection, the system is sensitive to shading, if a panel is shaded, the charging can stop completely or partially. Do not use series connection if any panel in the system risks being shaded for a longer period of time during the day. The panels should face the same direction and angle. Consider the total voltage (Voc) when connecting in series. The voltage of the regulator must not be exceeded, have a margin of at least 20% as the voltage increases in colder weather. Feel free to use Victron's MPPT calculator when choosing a regulator. Keep in mind that many regulators cannot handle the voltage from the regulator before it is connected to the battery. You should not connect the solar panel to the regulator while the solar panel is providing voltage. A tip is to install a DC switch or cover the solar panel during the actual connection.