36 PowerMax® solar cells form the heart of the module. These cells make optimum use of the module surface area. Thanks to their square shape, they are highly efficient and still provide the maximum power possible even under low light level conditions. The specially hardened front glass has excellent light transmitting properties and protects the module against most adverse environmental conditions such as hail or ice. The solar cells are laminated in EVA (ethylene-vinyl acetate) between a multilayer rear film and the front glass.

The ST10 performs efficiently in all operational conditions. Its distinctive ability to deliver battery-charge power levels in low-light situations makes it particularly effective for specialized applications and in adverse or changeable environments.