‑ This is a specialized electrolytic cell for electrochemiluminescence (ECL) research, with a PEEK‑fabricated cell body. ‑ The bottom of the cell serves as the detection channel for electrode luminescence. Transparent ITO & FTO substrates are available as working electrodes, with a defined working‑electrode area of 1 cm². ‑ Cell body diameter: 40 mm; bottom step dimension: 29 × 1 mm. ‑ Maximum height for the cell together with reference and counter electrodes: ≤ 55 mm. ‑ The cell is equipped with gas inlet and outlet ports. ‑ Standard accessories: AgCl reference electrode and platinum counter electrode.