Event horizon
Issue 52 Dec / Jan 2009/10

In his annual round-up, Dr Geoff Archenhold looks back at a momentous year of developments in LED technology and suggests that this is the dawn of a new era. more...

Life after the bulb
Issue 51 Oct / Nov 2009

Dr Geoff Archenhold looks at LED drivers and the latest advances in LED technology that will make solid state lighting solutions cost effective enough to replace the CFL. more...

LED dominance at Lightfair
Issue 49 Jun / Jul 2009

Geoff Archenhold walks the aisles at Lightfair and discovers a proliferation of LED technology that has driven the industry forward in the United States. more...

A response to Chris Rolph

Dr. Geoff Archenhold's right to reply... more...

Driving Irresponsibly?

Chris Rolph, Managing Director of Tryka L.E.D., takes exception to Dr. Geoff Archenhold's supposed impartiality. more...

Driving Responsibly
Issue 48 Apr / May 2009

Geoff Archenhold explains why LED driver reliability will be essential for SSL to succeed. more...

A response to Projection Lighting and Xicato regarding Remote Phosphor Technology

Dr. Geoff Archenhold's right to reply... more...

A response to 'The year of the LED lighting fixture'

Gary Heald, Projection Lighting and Roger Sexton, Xicato questions Dr. Geoff Archenold's views on Remote Phospher Technology. more...

The year of the LED lighting fixture
Issue 47 Feb / Mar 2009

British government LED adviser, Dr. Geoff Archenhold, reports on new government initiatives that will speed up the progress of LED fixtures in the commercial market. more...

Review of the LED year
issue 46 Dec / Jan 2008/9

UK Government LED tsar, Dr. Geoff Archenhold, confesses to being a little off the mark for last year’s predictions and recaps what has nonetheless been a spectacular year for the solid-state-lighting industry more...