Cosel is one of the world's leading power supply manufacturers offering
high-quality, ultra small size AC-DC power supplies,
DC-DC converters of the state-of-the-art technologies, and effective and
easy-to-use noise filters.

 When the fuse which is installed in the power supply blows, the internal circuit will be broken as well in almost all cases. Therefore, in such case, the power supply will not recover even if the fuse that have blown is replaced. If fuse is only replaced and turn on electricity, the short-circuit current flows and the internal component in the power supply will be damaged secondarily.
 Please return the faulty product to us and ask us to repair it, if its fuse blows.