Redragon brand is owned by Eastern Times Technology group, been around since the mid 90's making keyboards and mice and other peripherals, mostly in in the Indo-Asiatic markets. They did branch out into psus, but that's not their main focus like with companies such as Seasonic or SuperFlower, so R&D kinda is limited and you can expect a psu that's limited in quality and ability with more focus on sales volume than an actual worthy product.
When competing against giants such as Corsair or Thermaltake in that market, you have 2 options. Flood the market as you can with cheap stuff, or build a superior product that unfortunately costs a fortune to build. Not having the production capacity of FSP, Seasonic, SuperFlower, you generally end up with the first option.
Funny how the Redragon symbol is remarkably similar to the one MSI has been using for years, and the name Redragon is remarkably similar to Powercolor Red Dragon (which tried and failed at psu production 10 years ago).
Without some serious effort to get a psu reviewed by professional reviewers and get the units 'vouched' as decent or better, where platforms and outputs are documented, generally assume it couldn't pass inspection in the first place.
If ETT was serious about making a name and a quality product, people would be asking For them, not asking About them.