The advantages of this are:

• Lighter weight
• Lower form factor
• 40% more efficiency in heat dissipation
• Sleeker, more attractive appearance.
• Easy replacement of external components
• Suitable for mass production, at last I may satisfy demand!

The principle of the new design is that the thermal conductor screws into a threaded recess obtained by boring out and screw threading the pre existing charging keyway aperture, (unnecessary as 8V power packs are recharged separately to the lamp).

The heat conductor bridge is then secured by the helmet fixing bracket. The effect of this is a saving in weight, size, and also additional heatsinking is obtained from the wearers helmet. Tests on the Trigon NT have indicated that it maxes out at 75 degrees, shut in a cupboard!. Underground tests at full power for 2 hours indicated that it never heated up past the point were it was comfortable to touch, in fact just past warm.