DavidEF
(DavidEF)
18
Yeah, I’d say we need to define what “very cheap light” means to us. If longevity doesn’t matter to the definition, then the cheapest “very cheap light” would be simply a match stick! 
However, if you define it by the actual value that you get for the money, you can find lots of $5, $10, even $25 lights that qualify to be called a “very cheap light”! 