The cheap ‘cree’ stuff you see is generally straight from China and is of unknown/varying quality.
The mentioned Solarstorm X2, for example, is OK but most on the market are actually copies so it is hard to get a genuine one. Plus the battery packs and chargers MAY be alright, or they may not.
C & B Seen are one of the cheapest of the china importers that will then apply some degree of quality assurance to the stock they sell, and some decent backup.
MTB Batteries are a step up, probably with better quality batteries.
Torchy the battery boy is probably in the middle of the two.
Buy MTB Batteries if you can afford it, otherwise C & B Seen.
The Aldi stuff is no cheaper than C & B Seen.
You really want a bar light and a head light for night riding.