This blog is a very interesting article and gives a very good understanding for anyone thinking of changing to LED Lighting. It covers most subjects on LED, its characteristics and meaning to some of the technical terms that can often make technology difficult to understand.
Does my sodium lamp need an ignitor with it?
Sodium lamps are split into two categories, those requiring an external ignitor in the circuit and those that already have an internal ignitor within the lamp construction.
Sodium Lamps with an ignitor
The way to tell if it has an internal ignitor is to look at the small triangle which should be ...