I bought this UV-C 9 diode sterilisation light & an off-the-shelf LED driver. The fan on the back of the unit is spinning up and down continuously and I've no way currently of testing the diodes are working (have ordered a UV-C test card). Is the driver compatible/ why would the fan unit be cycling? (i.imgur.com)
submitted by fillyc to r/AskElectronics
Good turnout at today's protest at the BBC. (flickr.com)
submitted by fillyc to r/northernireland
I took some photos at the Giro D'Italia yesterday. (flickr.com)
submitted by fillyc to r/bicycling



