The ultra fire red led are not bad for their low price tag. You can get them as a complete kit for around forty quid. Cheaper if you source all the bits separate.
Don't get sucked in to the 5 and a half thousand lumen crap. It's all nonsense.
As a rule, cheap Chinese stuff, whatever it says the lumen output is you can half it to give you the true output.
The higher end torches get more accurate with what they state.