Oyviny 7-Way to 12V Power Adapter with LED Circuit Tester — 7 Pin RV Blade to 4/5 Way Trailer Connector
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Description
xOyviny 7-Way to 12V Power Adapter with LED Circuit Tester
Meet a compact, multi purpose trailer adapter designed for trucks, RVs, boats, and more. This 7‑way blade device not only expands towing options by converting to 4‑ or 5‑pin trailer connectors, but it also adds a convenient 12V power outlet in the cargo area for on the go use.
What it does for you
- Converts standard 7‑pin blade to 4‑ and 5‑pin trailer connectors, broadening compatibility for lighting and signaling needs
- Includes a 12V cigarette lighter outlet to power accessories such as air compressors, spotlights, small inverters, and portable coolers
- Built in LED indicators function as a trailer circuit tester, helping you verify taillights, brakes, signals, and auxiliary power
- Compact, plug and play design aims to reduce wiring work compared with running from the battery
- Designed to work with many factory OEM 7‑pin plugs across trucks, boats, RVs, and SUVs
Note: Some vehicles may rely on a relay or fuse not present in the factory setup. If the 12V plug does not energize, check the fuse panel and add or position a relay as needed following your owner’s guide.
Real world scenarios you might consider
Picture weekend adventures or roadside tasks where you want flexible trailer connections and accessible power. The 12V outlet can support a portable fridge or a small inverter, while the LED tester helps you preview lighting connections before departure.
- Towing with taillights, brake lights, reverse lights, and turn signals
- Powering a 12V accessory in the truck bed or trailer area
- Quickly verifying lighting circuits on a trailer before a trip
Compatibility and tips
The adapter is built to fit many OEM 7‑pin plugs. If you encounter a non responsive 12V circuit, inspect the vehicle fuse panel and consider adding the relay fuse as per your wiring diagram.
FAQ
Q: What can I power with the 12V outlet on the Oyviny adapter?
A: The 12V outlet can power devices like air compressors, lights, small inverters, and portable coolers when your vehicle electrical system allows.
Q: Is the adapter compatible with all 7-pin plugs?
A: It fits most factory OEM 7-pin blade plugs and provides 4- and 5-pin options, but verify your vehicle wiring and fuse setup before use.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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