Home  >  Solar Panel Wiring and Installation Equipment  > 
Diodes for Solar Panels

Blocking & Bypass Diodes

Blocking diodes are sometimes used in small systems with no charge controller to prevent power from feeding back to the solar panel from the batteries at night.

Bypass diodes are not needed on 12 volt systems, you do not need a blocking diode if you are using a charge controller.

We accept all major credit cards, PayPal and eCheck (via PayPal). We ship to all states and Canadian provinces, and to about 40 other countries.

Our Fall and Winter office hours are from 8 AM to 4 PM, Arizona Time, Mon-Fri. We are closed for major holidays. If you are in the Flagstaff area, please stop by our store and visit - map link: Get Map to Store

Flagstaff, AZ Local Time

Shop By Category