Halm - Model Celltest4-BF -Modular Turnkey System

The BF in Celltest4-BF stands for bifacial, and is a system that enables synchronous illumination of the front and back of the cell, allowing precise determination of its overall performance. This makes a detailed investigation of the cell in different illumination situations possible. The intensities and illumination times of the individual light sources (flasher) can be configured independently. It permits particularly long illumination times (flash durations) and offers a wide range of customizable measurement parameters and advanced analyses for measuring cells. Advanced software analysis methods such as SunsVoc, 2-diode fit, and doping concentration are optionally available.