Perhaps if they were manufactured here they might be forced to get UL and CSA certification.
'doesn't work that way. you can make lights in the US without getting a UL label. you can get a UL label for lights that are made overseas.
there are only two things that I can think of that would encourage them to get UL and CSA certification.
#1: if an LED grow light "manufacturer/(importer)" was interested in assuring their customers that they actually make and sell a quality, safe product . . . then they would seek out UL and CSA and get their products designed in a manner that would pass independent safety testing. (in other words, "get legit").
#2: if a LED grow light "manufacturer/(importer)" got legit enough to buy product liability insurance . . . the insurance company would require them to get their products UL approved.
i don't see either happening soon . . . we can't even get photometrics out of these companies . . . i'm not saying they're intentionally hiding the lack of performance and safety of these products . . . but . . . please tell me . . . if your product does live up to all the hype you spew . . . why not have a lab independently test it? wouldn't it be golden to be able to show that off? or is there something to hide?
unfortunately, the LED grow lights that i'm familiar with are designed by a salesperson here in the states (not an illumination engineer, or an electrical engineer) and assembled by a Chinese company and hyped to unknowing customers.
that's not a sustainable business model.
however, as the technology evolves, we'll see legit companies arrive. they will have independent testing and share the data up front. they will be UL and CSA labeled . . . and they will cost less than the horrific amounts being charged today.
my 2¢
Papa