I found that to be true also with most of the inexpensive auxiliary lights because they seem to have a reflector design made for a flood pattern. And, comparing lumen ratings alone isn't terribly informative without understanding the reflector design for spot vs flood pattern of light. You get a lot of extra light all around in front of the bike but they don't project much light far down the road. That's when I went on a search for something that would be comparable in performance to Clearwater Krista (spot pattern) or Erica (flood pattern) lights. The links I provided above are to lights that I believe do that. The Ericas are 6,000+ lumen floods, 3.7" round and cost $980. The Kristas are 3000+ lumen spots in the same form factor that throw an 8 degree pencil beam far down the road and cost $780. If you put a pair of both of those lights on your bike you would spend something in the neighborhood of $1,760 for about 9000+ lumens of combination spot and flood light. The solution I linked to above provides a combination spot and flood pattern throwing 18,800 lumens of light (12,800 lumens of flood, 6,000 lumens of spot) with CANBUS integration for about $260.Here's my 2 cents on auxiliary lights, you get what you pay for. On my 2017 GS I spent the money on the Denali Mounting bracket and EzCan but purchased some cheap Creed lights off Amazon, they served there purpose as far as being seen but at night I just didn't see a whole lot of increased visibility, especially with the high beams LED headlights on.
There's a few quirks I've noted above and I've only had them on the bike for a few months so I'll follow up in, say, a year from now and let you guys all know if they've held up well.
I also feel like I have to say this when I'm posting about these cheap lights - that is that I'm not at all trying to throw any shade on Clearwater or any of the premium light brands. Everything I know about these products is that they are excellent and impeccably supported by their respective companies. There is story after story on just about any motorcycle forum about how these companies delighted their customers. My goal was something different. I set out to see just how cheaply I could throw some real game changing light down the road without concern for product support. What I've posted above is the result of that search. If product support is important to you then I think you would be very well supported by any of those companies.