LED Zeppelin
Flashlight Enthusiast
Hardware:
- Fivemega FM3H-2 3" head
- FM 6 X 17670 tube and battery holder
- (4) Seoul P7 CSXOI
- (4) McR27XR reflectors
- (6) 17670 Li-ion cells, 2 series/3 parallel for 7.4 V operation
- (3) parallel Shark drivers sharing one dimming pot, all driving the string of four P7s
- (3) machined aluminum Shark heatsinks
- (1) 20K ohm logarithmic pot
- Custom pot knob w/ trit slot
- CNC heatsink, milled from 2 3/4" round 6061 aluminum. The inside contour of the head was mapped and the heatsink machined for a full-contact fit. Face features reflector seats that space the reflectors off the LEDs for proper focus and add them to the thermal mass.
Details:
- Current pot-adjustable from 0 - 2.7A
- Vf of LED strings: 13.6V V @ 3A
- Runtime approx. 40 min. on hi w/ 1600 mAh cells
- The first incarnation of this light is in this thread.





White wall beamshot, ISO200, 1/25 sec, F5.6:

$845 shipped domestic, cells not included, international inquire.
- Fivemega FM3H-2 3" head
- FM 6 X 17670 tube and battery holder
- (4) Seoul P7 CSXOI
- (4) McR27XR reflectors
- (6) 17670 Li-ion cells, 2 series/3 parallel for 7.4 V operation
- (3) parallel Shark drivers sharing one dimming pot, all driving the string of four P7s
- (3) machined aluminum Shark heatsinks
- (1) 20K ohm logarithmic pot
- Custom pot knob w/ trit slot
- CNC heatsink, milled from 2 3/4" round 6061 aluminum. The inside contour of the head was mapped and the heatsink machined for a full-contact fit. Face features reflector seats that space the reflectors off the LEDs for proper focus and add them to the thermal mass.
Details:
- Current pot-adjustable from 0 - 2.7A
- Vf of LED strings: 13.6V V @ 3A
- Runtime approx. 40 min. on hi w/ 1600 mAh cells
- The first incarnation of this light is in this thread.






White wall beamshot, ISO200, 1/25 sec, F5.6:

$845 shipped domestic, cells not included, international inquire.
Last edited: