Homemade Trailer Light Tester Kit

Wanted one of these for such a long time and decided to make one finally! Like share and subscribe, let me know in the comments if you'd be interested in a product like this! Ammo Box - https://www.harborfreight.com/030-cal... 7 pin female plug - https://amzn.to/47s8edM 7 pin adapter - https://amzn.to/4nyyJDd rocker switches - https://amzn.to/4mNRL8w ridged battery connector - https://amzn.to/41wEatK