I thought it was a bit silly for the Convoy S9 to have the lighted switch illuminated only when the light is on so I installed a white LED under the switch cover which is always on unless the light is locked out.
I shortened the battery tube and installed a magnetic tail, the magnet is not too strong but just enough to hold the light horizontally.
The original switch boot is covered in some GITD power & silicone mix which also makes it a little firmer to operate.
27mm x 1mm 3K carbon fibre sleeve on head & body and resistor modded for more current.
Charging indicator LEDs can be seen from the side. Driver cavity is potted.
Stock driver/ 1A USB charger unit with resistor mod so still four modes with 0.5s press for On/Off and single click to progress through the modes while the light is on. The UI takes a little getting used to but is tolerable.
.
Aluminium & Carbon Fibre shell
Luminus SST-20 6500K Emitter
16mm Copper DTP MCPCB
OP Reflector
GITD O-ring & LED Surround
Lockout-able
Shortened Body
Magnetic Tail
Potted Internals, including the USB port
Lighted & GITD Electronic Side Switch
Low - 9lm
Med - 60lm
High - 435lm
Max - 1200lm