The DealExtreme P60 size drop-in works with 2.7V~4.2V – a single Li-Ion 18650 battery, single RCR123A battery or CR123A battery. There is also a not too low level mode and annoying strobe mode. In the Surefire 6P host (about 5.2″ long – 13.2 cm), the DealExtreme Cree MC-E drop-in is an extremely bright flashlight in a small package. There is an extensive list of similar sized flashlights that use P60 size drop-ins in this Candlepowerforums.com thread.
DealExtreme seems optimistic in their description of the MC-E drop-in brightness as 410 lumens. It has more flood and less of a hot spot than the Malkoff M30. For comparison, my Malkoff Devices M30 output is rated at a realistic 235 lumens. My SSC P7 mod, inspired by jirik_cz, gives me the feeling that I am seeing everything. If not for the $125 USD cost, I would be all over the Malkoff M60 MC-E (NLA).
In my flickr set below, there are beamshots comparing the Cree MC-E, Cree XR-E and SSC P7. I centered the beam of each light on the scrawny tree against the fence.
I recently bought a Solarforc L2m flashlight host (head assembly, battery tube and tail switch assembly). The L2m is only 4.5″ long (~115 mm).
The head assembly is designed for a Surefire P60-sized drop-in. Fizz753 over at Candlepowerforums.com has compiled a very complete and up-to-date list of LED drop-ins.
I used one of my modded Cree XR-E (Q5 bin) LED drop-ins with a DealExtreme 16-Mode 3W 3.7V 7135 Circuit Board (SKU 7612) stuck in it.
Power is provided by a single protected Li-Ion RCR123A 3.7V battery. This 16340 size battery gives about 30 minutes on full with the 7612 board. I haven’t measured the current out of the board, but the specs say 1000 ma, so the output, according to Cree (Cree® XLamp® XR-E LED Data Sheet – PDF), is probably about 180-200 lm.
The next mod I made was replacing the reverse clicky switch with a McClicky switch. The last thing I’ll probably do is replace the crenelated ring on the head with a plain one.
In the Home Made and Modified Lights section, jirik_cz modded his Ultrafire C2 flashlight with a SSC P7. For power, he used a Li-Ion 18650 3.7V battery directly driving the LED. It is a simple and elegant mod.
I happened to have a spare Ultrafire C2 flashlight waiting for a great idea like jirik_cz’s mod. I already had the P7 emitter (C bin) mounted on a heat sink base. An advantage of having the P7 emitter on a heat sink base is that the positive base of the bare emitter is isolated from ground.
I used a Dremel to enlarge the Ultrafire pill so the P7, on some heat sink compound, fit perfectly.
For the positive battery contact side of the pill, I stripped a 17mm diameter circuit board and soldered the LED leads to it. To accommodate the larger diameter LED, (the Ultrafire C2 uses a Cree XLamp® XR-E LED), I enlarged the hole in the reflector with a reamer.
Thanks to jirik_cz, now I have a 5″ (130mm) long flashlight that is a bright as my Roar of the Penguin.
The Roar of the Pelican is a Maglite flashlight mod that derives it’s name from the use of Pelican flashlight’s replacement bulb #3854 and a combination of non-stock battery holders (or batteries) to get a higher voltage and therefore much brighter (roar) flashlight than a stock Maglite.It’s supposed to be an inexpensive mod. I keep calling it the Roar of the Penguin, because of the recent spate of penguin movies.
For my ROP project, I started out with a 2D Maglite and bought most of the required parts from a Hong Kong electronics reseller, Kaidomain.com.
The stock Maglite reflector is made out of plastic, as is the lens. Because of the greater heat produced by this bulb/battery mod, you need a metal reflector and glass lens.
Aftermarket reflectors are available with a cam or camless. The Kaidomain reflector and bulb combination wouldn’t adjust to the best beam using the included cam, so I made a modification to the Mag switch recommended by modamag in this post at Candlepowerforums.com. It puts the bulb in a position allowing for beam adjustments by using the threads on the flashlight body. Shims between the reflector and the bulb holder can also be used to adjust the beam quality when using a cammed reflector.
Candlepowerforum members have discussed the higher light transmissive properties of anti-reflective coated lenses – some to the point of using mineral glass watch crystals for flashlight lenses. I’m not that critical a worker.
For power, I used two 3AA to 1D battery adapters, which gives 7.2 volts using NiMH AA batteries. I bought 8 Sanyo Eneloop batteries. Eneloops and other similar batteries use a relatively new NiMH Low Self Discharge (LSD) technology.