Celem specializes in developing and producing high-power capacitors, primarily for induction heating and wireless power transfer applications. They offer a variety of capacitors that vary in capacitance, voltage, and current capabilities. Celem has innovated several key products in their field, including conduction cooled capacitors and the C-Cap capacitor, which significantly increases power density. They also provide customized design services and have patented products like matching transformers and ultra-high frequency capacitors.