4C Mag
4sevens P4 CMag heat sink, filed down for the P7
SSC P7 DSW0I-bin
SOB1000 driver
UCL
Stock reflector (cam removed)
Runs on 4xC alkalines or NiMH
Heavily underdriven P7 is probably running at Vf~3.1V. Another very cool-running setup that still puts out an estimated 300 lumens.
The LED
SOB1000 driver wired up to attach to the LED. Wire on the left goes to LED-. Wire on the right goes to LED+.
SOB1000 in the 4sevens heat sink. Solder has been put down on the center anode pad and the outer ground trace ring for later attachment of the 4C Mag's switch wires.
Filed down 4sevens P4 CMag heat sink on the right (P7 DMag heat sink on the left)
P7 glued to the heat sink using Arctic Alumina epoxy. I chose AA over Arctic Silver because the filing exposed some bare aluminum and I didn't want any potential problems with the P7's slug. I used 24 gauge, stranded Teflon wire, which barely fits past the P7.
Side view of the P7 on the heat sink
Hardwired Mag switch. Brown and white wire will be soldered to the center anode pad of the SOB1000. White and black wire will be soldered to the outer ground trace ring of the SOB1000. The wire is 22 gauge, stranded Teflon wire. The Mag is actually an old version body (i.e., it doesn't have the letter "C" in the serial number). I tightly wrapped strips of aluminum foil to fill the ~1mm gap between the heat sink and the Mag body. But since this is a very cool running setup, this was more for mechanical support (keeping the heat sink in the Mag tube, keeping the P7 centered) than for heat management.
Everything hooked up and assembled. Beam quality about the same as with the SSC P4 LED. The P7's hot spot is not as tightly focused as with the P4 and the P7's hot spot has more defects in it. The P7's spill is wide, bright, and smooth and doesn't have the P4's single bright ring in the middle of the spill.
Beam shot, from about 7 feet. Unfortunately, my camera can't capture the fine details of the hot spot. The image is totally oversaturated by the intensity. The hot spot does not look this good in reality.
Comparison beam shot from a 3D incandescent Mag