John Bullock Independent lighting designer

Publications by John Bullock

How do you measure the irradiance of UVC LEDs?

askjohn@luxreview.com was asked this question by Joe Van Vooren: ‘If a UVC LED specification states 6µW/m2 (microwatts per centimetre squared) at 100mA, does that mean radiation over one square centimetre at a distance of one centimetre from the LED?’

EDA puts focus onto lighting

The Electrical Distributors Association (EDA) used the occasion of its annual awards dinner to announce three new lighting initiatives, in education and training, product reporting standardisation and support for lighting manufacturers exhibiting at Frankfurt Light + Building.