Blue Headlights?

[Darrin Wright]

My book list the following:
101-2 lens blue headlamp (pg92)

It also list Lamp Ass- tail blue- with side mounting-with no side window. This was utilised on the LHR of the LP2/2A
It list the Lamp Ass- tail red- with side window and mounting. This was utilised on the RHR of the BGC.

I have a NOS red lamp unit fitted to my BGC, the 2 lights are different due to the solid mounting of the elbow at the rear for the wiring.

How and why they were different I am not sure, although red and blue light spectrum is different under different tactical conditions, although they probably were not that advanced back then....no night vision equipment like we have today.

I have seen NOS headlamp lens, they have a dark film between the 2 glass sections. Due to the last 70 years I cannot garantee the accuracy of the shade/tint. They do fade to yellow then clear in UV rays. I would class them not so much as blue, but a very dark blue/black shade.