Many moons ago I started with HPS.. As things change you have to adapt.. Not only the heat aspect but also the energy consumption is way less with LED’s.. Never knew about RF interference till I read it up there .. The best light I have ever used was led with t8s with UVB added for bloom cycle..That light was made in the US and costs more than 1k,, so yeah I borrowed it for a grow.. But you can find a similar led with somewhat similar results for 1/10th the price..