Got it, Surefire L4 vs M60L

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Agent_Jaws

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Oct 22, 2008
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I finally got some parts assembled and wanted to share with you all what the result was. What I wanted to do was to have a light with a throw like my incandescent 6P, a flood like my Surefire L4, but with a significantly longer burn time. What I did was take my 6P, picked up a custom body similar to a 9P, and added a LED drop-in. Here is a parts list for anyone interested:

Surefire 6P head and tailcap
FM 2x18500 body
Malkoff M60L lamp

These were the areas I was most concerned with (in no particular order):

Throw - The M60L throws much, much further than my Surefire L4 and about as far as my 6P incandescent. Malkoff claims that the M60L will "easily illuminate objects at 150+ feet", what they should do is emphasize the part that says "easily" because it does just that. I tested this on a tree top closer to 200 feet from my house and it did a great job of bringing it to life. That is realistically the limit of my semi-detailed vision range anyway so lighting anything beyond that, outside of larger objects, would be a waste for me.

Flood - I tested this inside my closed garage, so basically a room about 10x25 feet with some workout equipment and random crap strewn about. The L4 did a slightly better job of flooding the room with light, but realistically both lights were about even to my eyes. No matter where in the room I pointed either light, both provided enough flood to see clearly. The hotspot on the M60L is definitely smaller, however there is plenty of spill to go around and I wouldn't be afraid to use it in the same manner as my L4.

Runtime - I haven't tested this as I only just put it all together a little bit ago, but seeing that the Surefire L4 is rated to run regulated for about 1 hour, and the M60L is rated to burn for about 4.5 hours on 2 primaries, I expect much better runtimes than with the L4. Of course my 6P was running the P60 lamp that also promises about 1 hour of burn, so the M60L should easily win this. Couple that with the fact that I am running it with 3 primaries instead of 2, I am looking for runtimes in excess of 6 hours per set of batteries, which is outstanding.

Construction - This is about durability, and based on the unit I got I would rate the construction of both the FM 2x18500 body and the Malkoff module as top notch. I have a slight gap between the head and body but overall the unit is solid and I'm not worried at all about anything breaking. The M60L module looks and feels like something that you'd expect to come from a leader in the industry, not from a smaller builder. Overall I'm pretty impressed with the setup, except I need to figure out what to engrave on the flat part of the body now :D

Versatility - I love the versatility of the home brew light over the L4. With this configuration I can run 3 x primaries or 2 x 18500 rechargeables, with either the M60L or even a P90/91 lamp if I wanted. With the L4 I just have an L4 running primaries, but the home brew gives me much more versatility. I don't mind at all not having multiple outputs when I can pluck 4+ hours of runtime on rechargeable batteries. The idea of swapping lamps or batteries without HAVING to swap the other is one thing that really attracted me to this set-up. Plus, the overall size is still small enough to EDC if I wanted, and I think a 2x18650 body would've been too long for that.


So to summarize:

Throw like a 6P? :thumbsup:
Light a room like an L4? :thumbsup:
Guilt-free lumens? As soon as I pick up some batteries and a charger :D
Extended runtimes? Well at least 300% increase over either the 6P or L4, so :thumbsup:

Downsides? I kinda miss my clicky cap, but that can be remedied easily. Primary batteries also rattle a tad in the body, so I'm trying to conjure a way to safely pad them and silence the light :thinking:

Overall? Friggin Awesome! :twothumbs

Pic:
homebrewandl4.jpg


I suck at the manual camera settings but meh, L4 beam:

l4beam.jpg


M60L beam:

m60lbeam.jpg


For the life of me I couldn't get any good outdoor shots, but hey, my camera broke after Iraq so I just grabbed a loaner :D The beams are both tremendously brighter in real life, it's my crappy camera work that makes them look like *** but you can compare the intensity of the hot spots at least.
 
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Agent_Jaws Thanks enjoyed the info. You obviously have a good combination of parts :thumbsup: I have thought about modding my E2e with a KL4. Might just have to pick up some C series components and have at it instead of tinkering with the E2e.
 
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It's Malkoff, no contest. with the exception of it being a bit bigger. maybe not in the same class?
 
I think the nice thing about the Malkoff is that it'll also work in a 2-cell light, so if you're comfortable with any of the P60-sized lights it also works. The overall unit is definitely bigger but IMO the extended runtime and ability to switch between rechargeables and primaries is worth the size. The L4 is more pocket-friendly, but most of the time I carry my small backpack anyway so it works out fine.

Two mini-mods I've done with it since I put it together: I took my dremel to the body to open up the top of the battery tube a little to let the LED module drop in further (eliminated a slight gap between the head and body). I also slid a cardboard wrapper between the battery cells and the body, which eliminated any rattling when I shake the light. Now it's all together smooth and solid, and has become my favorite light.

The M60L is a great module, more efficient than the KL4 and has a much better spot for looking around outdoors. I don't hesitate in recommending it to others looking for an upgrade.
 
Two mini-mods I've done with it since I put it together: I took my dremel to the body to open up the top of the battery tube a little to let the LED module drop in further (eliminated a slight gap between the head and body). I also slid a cardboard wrapper between the battery cells and the body, which eliminated any rattling when I shake the light. Now it's all together smooth and solid, and has become my favorite light.
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That's an interesting alternative to filing the M60 module body, like I did for a great fit.
 
I went that route because I figured if I wanted to drop in a regular M60 later I'd have to file another module, so it made more sense to me to grind out the body. Plus there isn't much on the body you can damage, while if you get carried away on the module you could possibly do a lot more harm.
 
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Thanks for the info, Agent Jaws. Good to know since I have an M60L being delivered any day now.
 
According to the beamshots, the L4 lights up more of the garage door, no contest at all. Good job Agent jaws.

and the M60L lights up more of the periphery. See area to right of garage door. Much brighter than L4. That M60L, or any M60, M30 has a wide spread of light. I still prefer my L4 to my M30 for overall evenness of beam, edge to edge, and I would probably like an M60F.

Bill
 
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