Ranger power box transforma

I have used these in the past when upgrading previous trailer Tent electrics and found them very reliable. Unfortunately Due to site electrics, my current caravan had it's transformer fried. After much deliberation I decide to fit one of these to replace the Powerpart unit that was blown. The difference was evident on our first trip away. The florescent tubes which were dim and I thought were in need of change are now nice and bright and my battery charges better too.