I had to buy a larger tube of thermal paste in order to heatsink the copper cooling coil to the flashlight bosy.
The top and bottom of the coil is glued with thermal epoxy to keep it from moving.
I decided to not glue the entire coil because it would make it impossible to remove if it needed to be replaced for any reason.
Once the coil was in I put the rest of the electronics and cooling loop inside the light.
The final components were the reflector and front glass.
10 000ft cloud cover
The pictures are not very clear because they were all handheld, I will be doing a better photoshoot using a tripod in the near future.
I can’t wait to see how impressive the beam is using a CFT90 5x more lumens will make a much more visible beam.
If the led you use has 450 lumen as I have read in your parts list,you mean that the CFT-90 has only 5X450=2250 lumens?I wait to put one in my GT, thinking that the CFT-90 will have at least 5000 lumens.
Am I waiting in vain,because it is unable to give those 5000?
The LED I originally planned to use in this light is actually not as good as we thought it was due to a measurement error.
I need to edit the parts list, sorry.
The LED being used is currently a black flat, with about 900-1000lm.
Looking at picture nbr 15 a friendly (and probably unnecessary) advise: watch out with aeroplanes nearby!
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If you shine this -flashlight -searchlight at one, even accidentally, they will report it and you might get into trouble.
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Apart from that: amazing light with amazing throu, congratulation of this terrific build!! :+1: :+1: :+1:
I have seen this as well, but the design seems not well cooled
He went a very easy way and simply bought a complete Constand Voltage module, externally PWMing it
He has practically all heat generating components on a slave board,
which is externally PWMing this with an external P-FET
I hope he is only PWMing low output levels with the external MOSFET to get Moonlight and get the higher Output regulated over the output voltage,
but still he is using a CV module for a CC operation which is not ideal
It uses P-FETs which are in general a lot less good than N-Types
My design has all heat generating FETs close to the edge and with at least 2 layers heat conducted to the outer diameter
Thanks you, and thanks to lexel for posting more info about how driver development process!
That’s nice, although I wanted a lot more power than 20 amps
With lexel’s driver I will be able to push the CFT90 to the limits of my watercooling system.
It has 8 dip switches on it too that allow me to change the maximum current by multiples of 6 just in case the watercooling isn’t enough for 48 amps haha