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.
Rigol’s new HDO4000 Series ultra low noise 12bit oscilloscope with Centaur chipset. Unboxing, first impression, ...