Epsilon
Enlightened
XM-L2 U2 7* XM-L
In succession to the 7* XM-L U2 in FiveMega Elephant II host:
A 7*XM-L2 U2 build in FiveMega Elephant II host in Blue!
Enjoy!
When I had the heatsink of the previous build made, I already had two hosts so asked for two heatsinks.
Most of the building is the same as this build, so for more detail information:
7*-XM-L-U2-in-FiveMega-Elephant-II-host-build-7000-Led-lumen-power-BEAMSHOTS-added!
So, the parts:
- XM-L2 U2 Leds on execellent Led-tech.de 16mm copper PCB's
- 7 Der-Wichtel 23mm reflectors
- Taskled.com HBFlex
- Aluminium heatsink with dremelled wire groves
- Reflector holder
- Template for LED placement (not a part, but a tool to position the LEDS on the heatsink)
- FiveMega Elephant II host in blue (not in this pic )
- 4*18650 battery pack (not on pictures, please refer to the 7*XML buildlog).
A graph of the XM-L version of the LED on the same PCB:
This graph is from a CPF user (added the credits) very well done . His topic here
Lapped heatsink
Glued the LEDS, soldered the wires and covered them with 3M Polyimid tape for electrical insulation.
Mounted the driver (filed slightly to fit the Mag-Lite size tube) with the supplied thermal tape
2mm gold contacts solderd to the driver.
Momentary mod on the Maglite switch
Mounted the other end of the 2mm gold contacts in the switch.
Hot glued the reflectos in the reflector holder
Applied some thermal paste to the threads to use the complete head as a heatsink and grease to the seal for water tightness and easy screw-on.
New Detail: I screwed the head on, drilled a hole and tapped the hole.
This will be used to secure the head when the light is together. This prevents the head to be (accidently) twisted of and causing damage to the light.
Time to put the light together!
Testfire with the battery in place.
The drop-in of the reflector assembly
The completed Light
Beamshots
And to finish everything off: BEAMSHOTS!
To compare the light, I made a new set of beamshots with the following lights.
Lineup (Right to left)
- DX Aurora 35mm reflector light which I modded with a better heatsink and XM-L T6 @ 2800mA
- FiveMega 18650 D36 with XM-L U2 @ 3.8A (see sig for more info)
- Megalennium 2*26500 with XM-L2 U2 @ ??? (wait for topic soon )
- Mag2D Rebel with XM-L2 U2 @ 4.5A (see sig for more infO)
- Light of this topic
Mag2D Rebel 4.5A XM-L2 topic: Two-Maglite2D-builds-XM-L-5000mA-vs-XM-L2-4500mA-Comparing-beamshots
old beamshots (Auto White-ballance) removed.
New beamshots (4000K fixed white ballance):
Hope you enjoyed the topic
26-Jan-2014 update: Temperatures (No airflow, lying on table, tempsensor with AA and insulated on the neck)
Note: Step4 is around is 1800mA
Note: 60DegC is a very conservative step-down setting.
In succession to the 7* XM-L U2 in FiveMega Elephant II host:
A 7*XM-L2 U2 build in FiveMega Elephant II host in Blue!
Enjoy!
When I had the heatsink of the previous build made, I already had two hosts so asked for two heatsinks.
Most of the building is the same as this build, so for more detail information:
7*-XM-L-U2-in-FiveMega-Elephant-II-host-build-7000-Led-lumen-power-BEAMSHOTS-added!
So, the parts:
- XM-L2 U2 Leds on execellent Led-tech.de 16mm copper PCB's
- 7 Der-Wichtel 23mm reflectors
- Taskled.com HBFlex
- Aluminium heatsink with dremelled wire groves
- Reflector holder
- Template for LED placement (not a part, but a tool to position the LEDS on the heatsink)
- FiveMega Elephant II host in blue (not in this pic )
- 4*18650 battery pack (not on pictures, please refer to the 7*XML buildlog).
A graph of the XM-L version of the LED on the same PCB:
This graph is from a CPF user (added the credits) very well done . His topic here
Lapped heatsink
Glued the LEDS, soldered the wires and covered them with 3M Polyimid tape for electrical insulation.
Mounted the driver (filed slightly to fit the Mag-Lite size tube) with the supplied thermal tape
2mm gold contacts solderd to the driver.
Momentary mod on the Maglite switch
Mounted the other end of the 2mm gold contacts in the switch.
Hot glued the reflectos in the reflector holder
Applied some thermal paste to the threads to use the complete head as a heatsink and grease to the seal for water tightness and easy screw-on.
New Detail: I screwed the head on, drilled a hole and tapped the hole.
This will be used to secure the head when the light is together. This prevents the head to be (accidently) twisted of and causing damage to the light.
Time to put the light together!
Testfire with the battery in place.
The drop-in of the reflector assembly
The completed Light
Beamshots
And to finish everything off: BEAMSHOTS!
To compare the light, I made a new set of beamshots with the following lights.
Lineup (Right to left)
- DX Aurora 35mm reflector light which I modded with a better heatsink and XM-L T6 @ 2800mA
- FiveMega 18650 D36 with XM-L U2 @ 3.8A (see sig for more info)
- Megalennium 2*26500 with XM-L2 U2 @ ??? (wait for topic soon )
- Mag2D Rebel with XM-L2 U2 @ 4.5A (see sig for more infO)
- Light of this topic
Mag2D Rebel 4.5A XM-L2 topic: Two-Maglite2D-builds-XM-L-5000mA-vs-XM-L2-4500mA-Comparing-beamshots
old beamshots (Auto White-ballance) removed.
New beamshots (4000K fixed white ballance):
Hope you enjoyed the topic
26-Jan-2014 update: Temperatures (No airflow, lying on table, tempsensor with AA and insulated on the neck)
Note: Step4 is around is 1800mA
Note: 60DegC is a very conservative step-down setting.
Code:
Voltage cut-off settings:
16.8V 4.20v (full)
13.6 3.40v (medium)
13.0 3.25v (Low)
12.0 3.00v (Cutoff)
60degC Temp cut-off
Temparatures, measured with 3A drivecurrent
(On table, no airflow, measured on neck, where the heatsink touches the neck. Sensor with AA).
3000mA 3000mA 2500mA
FULL Step4 FULL
Secs DegC DegC DegC
0 24.0 24.0 24.1
30 24.5 24.3 24.4
60 26.1 24.9 25.5
90 28.3 25.6 26.9
120 30.5 26.3 28.6
150 32.7 27.0 30.3
180 34.8 27.8 32.0
210 36.8 28.4 33.5
240 38.6 29.1 35.0
270 40.3 29.8 36.4
300 42.1 30.4 37.8
330 43.8 31.0 39.3
340 45.4 ---- ----
STEPDOWN ---- ----
360 46.4 31.7 40.5
390 46.6 32.2 41.8
420 46.7 32.7 43.1
450 46.3 33.2 44.4
480 45.8 33.8 45.3
500 ---- Stepdown
510 45.3 34.3 45.5
540 45.0 34.8
570 44.6 35.2
600 44.2 35.7
720 37.4
840 38.9
960 40.3
1080 41.6
1200 42.6
Last edited: