What does the h mark on photovoltaic panels mean

🔹 What It Means: This is the highest voltage (in volts, V) the panel can generate when no current is flowing (i., when it's not connected to anything). 🧐 Fun. . What does the h mark on the photovoltaic pa its expected performance under specific conditions. When shopping for solar panels,it can be hard to identify th panels to optimize your solar system's performance. [pdf]