Features: l High quality for professional use l A wonderful replacement for broken or old one, ensures long lifetime and better work performance l There are 2 air inlets/outlets at the negative electrode of the fuel cell, the upper is air inlet and the lower is air outlet l The anode is connected to hydrogen, and the cathode is connected to the air in the atmosphere l No short-circuit operation, no external voltage across the fuel cell voltage l Long-time operation, the positive and negative electrodes will produce liquid water, you can use an air compressor or syringe to remove it with pressure Specification: l Electrode Material: Monolithic MEA l Size: 56.8 x 30 x 46.5mm l Weight: about 63 g l Power Generation Area: 25mm*25mm l Voltage Range: 0V--0.95V l Current: 1.0A@0.6V (25C) l Anode Fuel: 99.99% Hydrogen l Cathode Fuel: Air In The Atmosphere Package Includes: l 1 x Power Generation Module