I'm thinking about upgrading my Magicshine MJ-816 bikelight.
It's running a SCC P7 led en 2 Cree XP-E leds.
I want to replace the P7 by the Cree XM-L U3.
Both are running on the same voltage and current.
I want to replace de XP-E's also but i'm not sure by which one.
I want as much lumens as possible.
The XP-E runs at max 1000mA and I was thinking to replace them bij a XM-L U3 or a XP-G S2.
I'm also going to replace the wide beam optic by a spot beam optic.
Can anyone give me some advice?
Last edited by aandegrens; 01-29-2013 at 02:16 PM.
Just for clarification - you have Cree XP-E in the outer housings, and a Seoul P7 in the middle. You referred to the outer as MC-E, MP-E and XP-E in the same paragraph :-)
Without knowing exactly how those are wired to the driver, I'd be hesitant to tell you what can be swapped with what.
with a Seoul P7 rated upward of 900lumen, it's not much below the output of an XM-L though.
I've found some reviews/pics online that indicate to me that the XP-E pair is getting 600ma current each, and the P7 gets 2.6A while running simultaneously. That's making me think theres separate drivers for the P7 and the XP-E's?
Some of the eletronics gurus around here might be able to expound on the circuitry as to what it does:
Inside the housing
Inside the remote switch
gurus - that 7533-1 is a current regulator, right? Is there a driver in the remote?
Here's some measurements taken from a test:
The manufacturer declares the power of 16W - it's quite a lot for a bike LEDs light, let's check that .
V-In I-in P-In V-led I-led P-led Eff.
MAX 7,85V 1,89A 14,84W 3,17V 2,57A 8,16W
2x 3,11V 0,59A 1,85W
total 11,87W 80%
SSC P7 8,05V 1,31A 10,55W 3,19V 2,61A 8,34W 79%
2x Cree 8,19V 0,49A 4,01W 3,12V 0,62A 1,92W 48%
formatting looks a little wonky - the test is found here:
Magicshine MJ-816 - review of the cheapest 1000+ lumen bike light.
short story though:
without upgrading the internal electronics - you will gain very little output with going from a P7 to an XM-L @ 2.6A current. Can't tell you if an XM-L looks decent using the stock reflector.
without upgrading the electronics to the XP-E - you might gain ~100lumen if you put a XM-L's in there at 600ma current, but Can't speak to how that reflector will work with an XM-L. Replacing with XP-Gs would gain a negligible amount.
Honestly, you're probably looking at a lot of work for less than 300lumen difference in output, and the possibility of the beams not looking as good (could be better though - it's unknown).
Thanks for your reply. Of course I mean XP-E in my story.
I'm planning to replace the optics as well.
I will test it with the XM-L with the standard optic.
Secondly I will replace the optics on the XP-E so I will get a spot beam.
I don't like the wide beam on it.
I going to order some stuff and will get on trying.
Thank you very much again for your time.
Lots of detail on this light in this thread
MagicShine 1400 Deconstructed
and specifics on the driver in this particular post in that thread
MagicShine 1400 Deconstructed