Lights flicker in the mall
Taking time out to write
Thinking back
To when I studied the technicalities
And completed calculations
For lighting and illumination
I do know my sodium
From my argon mercury vapour
Also you too will remember
The neon lights in the discotheque
Where our white bits were made to glow
By the simplest
Of the light inventors trickery
Light emitting diodes
Now known as the ubiquitous LED
Were in their infancy
Tungsten, back then
Was the first choice
When the cost of energy was low
Quite a lot then has changed
For a little while
I mixed coloured paint
With oil on glass plates
Which I projected
To create
My own kaleidoscopic
Lava lamp effect