Sure can DLE! I'll check on the natural span.
I'll upload pics taken not too long ago - of the same flowers under different lighting conditions. And also include pics from a different spike - but same plant - just from a different bulb.
Above: flowers in the front are the same as the ones in the original post.
Above : previous batch of flowers ----- but the spike jutting out to the right hand side is the spike associated with the flowers in the opening post.
Above : buds of the 'previous' batch of flowers.
Above : previous batch of flowers - photographed in the shade. Reminds me of darth vader hehehe