Alan Tulla Technical editor

Alan Tulla is Lux's technical editor, and an experienced independent lighting designer.

Publications by Alan Tulla

Framing spotlights

Framing spotlights are those fitted with adjustable shutters or “gates” so that you can achieve a square or rectangular beam as well as a circular one (triangles and diamond shapes are also possible).

Emergency lighting twin spots

Historically, if you wanted instant switch-on for emergency lighting and you were illuminating a large area or a long aisle, two halogen headlamps on a car battery made a lot of sense.