Portable Trailer Light Tester – 7-Way + 4/5/6-Pin Adapter, Battery-Powered, Water-Resistant

Product Introduction

Testing trailer lights usually means hooking up to a truck, running back and forth to check each light, and hoping you didn't miss anything. This tester does it without the truck. Plug it into the trailer connector, press a button, and each light function runs independently — running lights, turn signals, brake lights, reverse, and electric brakes. One person, one tool, done in minutes.

Product Features

🔌 Test all lights without hooking up to a truck
Simulates running lights, turn signals, brake lights, and reverse lights directly from the tester. No need to connect to a tow vehicle. No back-and-forth.

🔗 7-way connector + 4/5/6-pin adapter included
Standard 7-way spade plug covers most trailers. Includes a 3-way adapter for 4-pin, 5-pin, and 6-pin plugs. One tool, all trailer types.

💧 Water-resistant — shop or field, rain or shine
Built to handle outdoor conditions. Works in the shop, on the lot, or out in the field. No weather delays.

🔋 Battery-powered with built-in charger
Runs on a 12V battery (not included). Comes with a 500mA charger. Always ready when you need it.

Product Specifications

• Product Name: Portable Trailer Light Tester
• Connector: 7-way spade (J2863 style) + 4/5/6-pin adapter
• Functions Tested: Running lights, turn signals, brake lights, reverse lights, 12V power, electric brakes
• Power: 12V battery (not included), 500mA charger included
• Protection: Auto-reset circuit breaker, water-resistant
• Best For: Trailers, RVs, utility trailers, boat trailers

Package Contents

• 1 × Trailer light tester
• 1 × 3-way adapter (4-pin, 5-pin, 6-pin)
• 1 × 500mA battery charger
• 1 × User manual

✨ Plug it in. Press a button. Know your lights work.