This is my Surefire L7 mod using a C-bin SSC P7 emitter from DX and AMC7153x8 driver from Kaidomain.
I've removed the stock heatsink, machined away some of the aluminium fittings and enlarged the hole for the larger LED using a combination of dremmel and drill. The aluminium heatsink was machined also using the dremmel and drill technique. It's hollowed out slightly to house the 7135x8 driver and the spring contact comes from the stock spring assembly. This custom LED module is glued directly on to the (part on the left) with Arctic Silver epoxy so will probably be difficult to remove.
This is the completed L7. I was lucky enough to get hold of the custom Silverfox B90 replacement pack using the GP 3700mAh "SP" Nimh cells (also shown in the picture). This has about twice the capacity as the stock NiCd pack.
Now for the comparison beamshots
Left: quad cree Q5 driven at 825mA with Fatman driver
middle: Surefire L7 with SSC P7 and 7135x8 driver
right: Fenix L2D rebel 100 on turbo
(-1 EV)
(-3EV)
Hot off the charger, the L7 mod is a little dimmer than the quad cree but much brighter than the Fenix on turbo. After about 5 mins, the L7 dims to somewhere in between but still remains significantly brighter than the Fenix. The AMC7135x8 driver does not appear to maintain perfect regulation but it's certainly much better than direct drive.
The beam pattern does have decent throw but there's a noticeable doughnut hole. I can live with it though.
I'm getting about 1hr 30min with the Silverfox battery until the output starts to dim noticeably. I'm sure it will run for a while longer in moon mode but I don't want to run NiMh down too low. The capacity should improve slightly after a few more cycles since I haven't used my Silverfox packs for a while.
I've removed the stock heatsink, machined away some of the aluminium fittings and enlarged the hole for the larger LED using a combination of dremmel and drill. The aluminium heatsink was machined also using the dremmel and drill technique. It's hollowed out slightly to house the 7135x8 driver and the spring contact comes from the stock spring assembly. This custom LED module is glued directly on to the (part on the left) with Arctic Silver epoxy so will probably be difficult to remove.
This is the completed L7. I was lucky enough to get hold of the custom Silverfox B90 replacement pack using the GP 3700mAh "SP" Nimh cells (also shown in the picture). This has about twice the capacity as the stock NiCd pack.
Now for the comparison beamshots
Left: quad cree Q5 driven at 825mA with Fatman driver
middle: Surefire L7 with SSC P7 and 7135x8 driver
right: Fenix L2D rebel 100 on turbo
(-1 EV)
(-3EV)
Hot off the charger, the L7 mod is a little dimmer than the quad cree but much brighter than the Fenix on turbo. After about 5 mins, the L7 dims to somewhere in between but still remains significantly brighter than the Fenix. The AMC7135x8 driver does not appear to maintain perfect regulation but it's certainly much better than direct drive.
The beam pattern does have decent throw but there's a noticeable doughnut hole. I can live with it though.
I'm getting about 1hr 30min with the Silverfox battery until the output starts to dim noticeably. I'm sure it will run for a while longer in moon mode but I don't want to run NiMh down too low. The capacity should improve slightly after a few more cycles since I haven't used my Silverfox packs for a while.
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I removed what I could with pliers then had to grind the rest of the LED off with a dremel. It looks like a bit of a mess in there now.
