UltraFire 501B XM-L
Reviewer's Overall Rating: ★★★★☆
|Battery:||1x18650 protected or unprotected|
|Modes:||5 (H M L Strb SOS) with Memory|
|LED Type:||CREE XM-L t6|
|Lens:||Glass lens and SMOOTH reflector|
|Tailstands:||No (can be modded to tailstand)|
|Date Ordered:||Aug 2011|
- Memory mode 100% functional
- Draws 3 Amps! (not as the declared 1,4Amps in the product description)
- Good transition between the hotspot and the outer side of the beam
- Bright por a P60 light
- Bad heatsinking capabilities of the 501B host
- Must do the "alu paper foil" trick to improve heat transfer
- Can not tailstand (except if you mod it)
Features / Value: ★★★☆☆
Not much to say. I purchased this light to use a 20$ store credit I had at DX and buy it to use the P60 dropin in a better host I have unused at home, because I didn´t liked the 501B desing...
Really, after playing with it, is not neccesary to put the dropin in another host, just wrap it with alu foil and the heat transfer will be aceptable (but not perfect, of course) with this host and any P60 host.
The light arrived dirty and bad lubed. Easy fix: clean and lube.
Before doing the alu foil trick, the heat wasnt transferred from the dropin to the body. After the trick, the heat transfer is almost instantly (of course, it continues being a P60, but the heat transfer is way better)
Design / Build Quality: ★★★☆☆
All of us know well about the 501B host.
It can be diassembled everywhere (head, body, tailcap)
It is new for me, the part of the body near to the head has a plastic part with a metal part for contacting the positive spring of the dropin with the positive pole of the battery...
The lanyard avoids tailstanding, but can be removed and tailstanding problem solved...
It has rubber orings where it should have...
Compared to F20...:
Battery Life: ★★★☆☆
Drawing 2,98A on high mode, the runtime is not going to be enormous. BTW, the power consumption on each mode is:
High 2,98A (I estimate about 700+ lumens)
Medium 0,89A (I estimate about 300 lumens)
Low 0,19A (I estimate about 60 lumens)
I imagine that on Medium mode it will give a reasonable runtime with a more than aceptable lumens output.
Light Output: ★★★★★
As in my other reviews, I have not instrumental to measure lumens output, I will do with my "ojimetro" (bah, spanish word which means "by eye"... more or less)
It produces a BIG NOT well defined hotspot with a good transition between the hotspot and the outer... Can be seen a few rings in the outer part of the beam
Beamshot at 3 meters (aprox):
NOTE: the description on DX page says "ruged orange peel reflector". My unit has a smooth reflector.
ALSO NOTE: the description on DX page says "digital regulated 1,4A output...". In the DX forums can be seen some reports that the firsts batches were coming regulated to 1,4A, but newer batches are coming with 3.0A regulation.
Difficult to see in the photo, but the driver board says "SG-PCB"
Nothing much more to say, basically a P60 host with not very good heatsinking capabilities which need the "alu foil" trick to help running the light on on high during long periods...
3.0Amp regulation gives a lot of light from a P60 light, but, due to that, requires improved heatsinking...
Ah, not to forget. This light can be ordered from HK, UK, or US
HK link http://www.dealextreme.com/p/ultrafire-wf-501b-xm-lt6-5-mode-510-lumen-m...
UK link http://www.dealextreme.com/p/ultrafire-wf-501b-xm-lt6-5-mode-510-lumen-m...
US link http://www.dealextreme.com/p/ultrafire-wf-501b-xm-lt6-5-mode-510-lumen-m...