Review on 🔌 5 Pack Bosch Style Waterproof Relay Kit: 12V 5-Pin [Harness Socket] [12 AWG Hot Wires] [SPDT] [30/40 Amp] Automotive & Marine Relays for Boats, Auto Fans & Cars by Greg Harris

I just got it in the mail so haven't had a chance to hook it up but my first impressions are very positive. They appear to be quite durable and have a good waterproof base. The wires for the coil (85 and 86) are 16 AWG and appear to be PVC insulated. Wires for 87, 87A and 30 are 12 AWG and also have a PVC jacket. The wires are all just under 4.5", so I was a bit disappointed that they weren't more. Overall though, I'm very happy with the output quality.