LED Steady-State Sun Simulator Class a+a+a+ PV Module Testing Equipment. LED Light Source: Direct light structure simulating real sunlight exposure conditions. Wide Spectral Range: Covers 350-1200nm for accurate perovskite cell testing. Adjustable Pulse Width: Pulse width adjustable or constant from 1S to 100S. Dual Test Modes: Supports both steady-state mode and pulse mode operations. OEM and ODM Support: Full customization support available for manufacturing needs. Custom Color Options: Color can be customized according to customer requirements. Large Component Size: Effective measurement area up to 400mm x 300mm. Up/Down Illumination: Direct type light source with up and down illumination capability.