On the driver PCB is a bridge rectifier ... In the hardware store, I noticed new 9-watt BR30 LED bulbs for $5 each. The PAR30s I purchased in 2010 were $45 and consume 11 watts.
Could there be a better way? Of course there could, and [Sasa Karanovic] thought he had it all figured out with this PCB-based LED cube. At first glance, it seems to make perfect sense ...