4 x 4p MC-E Beast, looking for drivers

[Lumenous H]

Hello all, I'm a long time lurker first time poster.

I've been working as a security guard for 3 years now and I'm building myself a new flashlight for my job. Due to the nature of my job, it needs to be Mag-sized, light weight and have a run time upwards of two hours between charges. Because I'm also compensating for my lack of... I'm going to be a lumen-whore about it too.

I'm planning to make the new torch run on two 10ah, 3.2v LiFePO4s (I don't touch Lithium Ion). In parallel that will be 20ah at a nominal 3.2v. I can do a low voltage cut off circuit easily enough, I just need a driver/regulator that will enable me to run the LEDs.

The plan is to run 4 MC-Es, all in parallel. If you could bear with me whilst I yak about the throw patterns, so you may better understand my circuitry needs; one LED will be a warm white 'flood' beam of about 27 degrees, two will be cool white 'power' beams of about 10 degrees and one will be my 2 degree 'spot' beam. There will be a setting switch to dictate which LEDs will be turned on and I'm also after a high/low power switch.

Does anyone know of a driver that can input 2.7-3.5v and output two selectable states, both ~300ma and ~700ma? And for this driver to be able to output those states 16+ times? I could use 4 times 4-output drivers, but can't really go much beyond that.


I appreciate any help I can get in this respect, and I know there are many experienced modders on these boards.

 

[ifor powell]

I don't think you are not going to find what you are looking for. You need to look at changeing the configuration some. 4 mces fould normaly be conected up in series not parallel. Then you need a driver that will give 2.8A 12-14V the TaskLed HipFlex would be the best but there may be other alternatives. The hipflex requires the input voltage to be higher than the output voltage so you would be looking at 5 cells in series for 15-16V.

 

[Packhorse]

MCE with a 10 degree beam? Good luck with that.

As for 2 degree? Forget it.

Some optics claim 10 degrees but simply dont deliver.

And considering you want all 4 in a MAG sized head 4 MC-Es will give you nothing but flood with a dark spot in the middle.

I suggest 2 MC-Es for flood and 2 XR-Es using aspherics for a 8 degree spot. I just built a single MC-E and 3x XR-E aspheric mag and its great.

 

[mash.m]

MCE with a 10 degree beam? Good luck with that.

As for 2 degree? Forget it.

Some optics claim 10 degrees but simply dont deliver.

And considering you want all 4 in a MAG sized head 4 MC-Es will give you nothing but flood with a dark spot in the middle.

I suggest 2 MC-Es for flood and 2 XR-Es using aspherics for a 8 degree spot. I just built a single MC-E and 3x XR-E aspheric mag and its great.

hi, i think this isn´t completely right. there are several mod´s out with 4 or mor mc-e in a mag head that give not only flood. i build a mag for myself with 4 mc-e and 3 xr-e r2. much flood but also a nice spot that reach 100meters plus without any problem.

markus

 

[steve6690]

hi, i think this isn´t completely right. there are several mod´s out with 4 or mor mc-e in a mag head that give not only flood. i build a mag for myself with 4 mc-e and 3 xr-e r2. much flood but also a nice spot that reach 100meters plus without any problem.

markus

Interesting..How is this achieved Markus ?

 

[mash.m]

Interesting..How is this achieved Markus ?

hi, sorry my mistake - 3 x mc-e + 4 x r2 but here we go :duh2: :

http://www.candlepowerforums.com/vb/showthread.php?t=225234

the beamshots show the spot not very good and after 100meters it is a big spot.

markus