We are looking at replacing some 400Watt Metal Halide lamps with LED retrofit lamps.  This retrofit lamp requires bypassing the ballast and running the lamp at line voltage.  I asked them if they had a UL 1598C approved procedure for bypassing the ballast but they do not.   Should we install these lamps or look for other options?   Is a UL 1598C approved procedure required to meet the NEC when bypassing ballasts?
Thanks in Advance
	
		
			
		
		
	
				
			Thanks in Advance
				