Teardown of the new INDUAL 80W industrial LED high bay ceiling light from Lightinstar
In particular a close-up look at the 150W 12×12 Chip-On-Board COB LED module from HongliTronic
UPDATE: Yes, they say they have fixed the issues of mounting and earthing.
Another look at finding a $50 analog oscilloscope on ebay. Forum HERE Podcast: DownloadBe Sociable, ...