The WK "power tank" adds to the already tremendous advantages of the non-polarized capacitors by offering high voltage operation, The power tank is an innovative capacitor capable of handling high voltages and currents combined with long life and an asymmetrical non-polarized construction and small size.
Please note Black Gate production ceased in 2006 so these capacitors are very hard to get hold of. We are always looking out for stock purchases but it is becoming increasingly hard to buy them.
To see all Black Gate stocks, click HERE
As an alternative check out the Audio Note Kaisei electrolytic capacitors. Click HERE