Thorn OSQ 150 projector floodlight: Cover removed.

NOS Thorn OSQ 150 for 1 x 150w G12 metal halide lamp.

Shown here with the front cover removed exposing the G12 lamp and reflector.
Lamp is a Philips 150w CDM-T in colour 942.

Note how the reflector is gathering all of the light from the above twin 36w T8 fluorescent lamps and focusing it back onto the arctube!
Very tight optical control can be achieved with these compact metal halide lamps.

On the 1000w CSI PAR64 version, there is nothing inside here apart from a large G38 socket!