Meanwell HEP-series

Ao anyone knows tye difference between meanwell HLG series and the HEP- series?

Saw a HEP-480-54A at arrow and lo and behold its a bit more expensive than the hlg, is there an added value to going with the HEP-480?

They advertise them as a industrial grade driver for high humidity. The B versions of the HEP driver are rated @ ip68 as where b versions of HLG's are rated @ ip67. So they are slightly more water resistant if using B versions. The A versions are both rated @ ip65 so no real difference in those that I can see. https://www.meanwell.com/Upload/PDF/HEP-480/HEP-480-SPEC.PDF ......... http://www.meanwellusa.com/webapp/product/search.aspx?prod=HLG-480H