Maglite 5D

I have a MagLite 5D. Can someone give suggestions what mods can be done? what converter boards and crees or seoul or luxeon leds to use.

Would like to mod this light to give a really bright light with good throw.

As far as LEDs go:
Most throw-Get a Cree XR-E, D-sink heatsink, a downboy 750, some thermal epoxy, and an aspherical lens

Fair balance between throw&spill:
Seoul P4, D-sink, downboy 750, thermal epoxy, M2 smooth reflector(optional, but gives a better beam), UCL(ultra clear lens)

Thinking of puting in 3 Cree XR-E bulbs. The Maglite can take 5 D cells. What converting board to use?

A boost type ought to do it with the 3 leds in series.

www.taskled.com

Fatman converter board.

3rd_shift said:

A boost type ought to do it with the 3 leds in series.

www.taskled.com

Fatman converter board.

Click to expand...

Can I connect three units of Cree XR-E Q3 bin in series with the FATMAN step up booster and power up the entire circuit with five D cell (1.5 v) Alkaline batteries?

Should be really bright right?

snipinglight said:

Can I connect three units of Cree XR-E Q3 bin in series with the FATMAN step up booster and power up the entire circuit with five D cell (1.5 v) Alkaline batteries?

Should be really bright right?

Click to expand...

I think. with 5 Alkys the internal resistance of the cells and the voltage drop is too high. You'll need more power to drive the Led's at higher rates.

Best regards

____
Tom

Long John said:

I think. with 5 Alkys the internal resistance of the cells and the voltage drop is too high. You'll need more power to drive the Led's at higher rates.

Best regards

____
Tom

Click to expand...

Dont understand u, can u elaborate? More power to drive the Leds at higher rates means ... more batteries?

snipinglight said:

Dont understand u, can u elaborate? More power to drive the Leds at higher rates means ... more batteries?

Click to expand...

At least, yes. With 5xAlkys you'll have about 7,5Volts without load. When you'll connect 3x Led's in series and will drive them with a Fatman at about 900mA, the Fatman will work at about 6V-12V.
So with this setup you can't get runtimes in regulation.

You can ask George for more informations about his drivers, but I wouldn't recommend the use of Alkys for a multiple high-performance Led-setup. The chemistry isn't suitable for high current draws.

Go with nimh's or LiIons

Best regards

____
Tom