F89
Flashlight Enthusiast
- Joined
- Mar 15, 2014
- Messages
- 1,420
That's not necessarily true but it's mentioned frequently.
There's no point building a hot P60 if the shell isn't designed and contoured well, and isn't put together well.
I have three P60s running high amps.
One was built by a guy in Germany who called himself Vinz on here. It's a quad built in a straight sided heavy copper shell that's silver plated running at 5A and is very well made. From memory he mixed up his own diamond compound thermal glue on these drop ins which is interesting.
My other two I made from similar shells, solid copper and nickel or silver plated from memory. They're both quads running on H17Fx drivers with the MCPCB and LEDs solder bonded to the shell.
I have them installed in Oveready bored 6P bodies tightly fit and shimmed with copper foil.
They have a heap of thermal mass for a small light and transfer heat excellently.
I have frequently run them hard and they'll run as hard as you like on low internal resistance high drain batteries.
I've left the thermal step down at the default but I can't say I've ever seen them actually step down though. They'll get super hot and keep sucking amps as long as the battery provides them.
More often than not I'll drop down modes from the FET channel myself as they'll still put out plenty of light at 3 amps. It makes sense with a small and powerful light to not run it hard constantly if you want decent runtime and for it not to heat up a heap.
I'd say the main limiting factor on these lights isn't the thermal transfer from the shell to the body, as it certainly does a great job at that, it's simply the size of the light with such high wattage.
Malkoff drop ins on the other hand have a fair amount of air gap around them in a 6P and a heap of space in a Malkoff head but they're run at much more sensible currents.
There's no point building a hot P60 if the shell isn't designed and contoured well, and isn't put together well.
I have three P60s running high amps.
One was built by a guy in Germany who called himself Vinz on here. It's a quad built in a straight sided heavy copper shell that's silver plated running at 5A and is very well made. From memory he mixed up his own diamond compound thermal glue on these drop ins which is interesting.
My other two I made from similar shells, solid copper and nickel or silver plated from memory. They're both quads running on H17Fx drivers with the MCPCB and LEDs solder bonded to the shell.
I have them installed in Oveready bored 6P bodies tightly fit and shimmed with copper foil.
They have a heap of thermal mass for a small light and transfer heat excellently.
I have frequently run them hard and they'll run as hard as you like on low internal resistance high drain batteries.
I've left the thermal step down at the default but I can't say I've ever seen them actually step down though. They'll get super hot and keep sucking amps as long as the battery provides them.
More often than not I'll drop down modes from the FET channel myself as they'll still put out plenty of light at 3 amps. It makes sense with a small and powerful light to not run it hard constantly if you want decent runtime and for it not to heat up a heap.
I'd say the main limiting factor on these lights isn't the thermal transfer from the shell to the body, as it certainly does a great job at that, it's simply the size of the light with such high wattage.
Malkoff drop ins on the other hand have a fair amount of air gap around them in a 6P and a heap of space in a Malkoff head but they're run at much more sensible currents.