Piritlight SG-L8 MC-E
Reviewer's Overall Rating: ★★
Summary:
Battery: | 18650 |
Switch: | Forward clickie |
Modes: | 5 |
LED Type: | Cree MC-E |
Lens: | Coated glass |
Tailstands: | Very well |
Price Paid: | $44.90 |
From: | DealExtreme |
Pros:
- Bright. Very bright
- Throws
- Feels good in the hand
- Good optics
- Drives an MC-E like it is meant to be driven. Most Chinese lights don't
- Manages to get the heat away from the LED
- Did I say it throws?
- From the lightbox numbers it is putting out (Give or take 50%) 550 lumens
- Spill is very usable, even on low. Most dedicated throwers have useless spill.
Cons:
- Atrocious build quality redeemed by the fact that the electronics and optics do what they are supposed to.
- Gets hot - it is a 10-11W device
- Shows a hole in the beam even at 50'
- Reflector not really designed for a quad die LED
- Despite the repairs, it can still flicker a bit. Time for some gorilla action on tightening everything down. May need to fiddle with the reflector as should be able to get more throw out of it yet.
Features / Value: ★★★
This is a Raidfire Spear clone more or less - but the Raidfire was a $120 light. I'm saying it is not that great value because of the dreadful build quality.
Ignore the marks on the body, those were from my attempts to get the thing apart. I got one of these in error - I ordered the single die Q5 version which certainly makes less light but probably throws better. And is $15 cheaper.
It has the usual 5 modes in a slightly odd order, it goes medium, low, high, strobe, SOS. It is a real SOS, rather than the SOSOSO that quite a few lights do. The strobe is quite effective, a few seconds of it made me queasy. Doubt I'll ever use it though. The light does not have mode memory, it always comes on in medium which seems a little odd for a thrower. Personally, I prefer either LMH or HML. At least with no mode memory you can avoid the blinky modes altogether.
On high it is pulling 3.2A from an 18650 which probably means it is driving the LED at spec (2.8A). It has a very deep, smooth reflector for throw.
This picture doesn't really show the depth of the reflector, but if you look at the first picture and know that the LED is actually behind the broad ring at the base of the head you can see that it is a very deep reflector indeed (about 55mm (2.25")) The out of focus spots in the picture of the reflector are mostly stuff raised when I cut the grass shortly before these pictures were taken. There was nothing visible on the reflector when I got it.
Build Quality: ★
Well..... See this post for details. #41 Poor design of contacts at switch end - the spring post needs to be longer even when used with 17670 cells. Very poor soldering on switch module - again see the link for details. Glued head which is why the body is scarred from my attempts to open it to get at the pill. The pill was loose which lead to another intermittent fault. Apart from that it is a nice enough light. The reflector is good and was clean (less clean now that I've had it apart). It tailstands very well due to the flared tail. It'll even tailstand on an uneven surface such as my just cut grass
It does get hot, but then it is a 10-11 watt light and LEDs do generate heat, they aren't even close to their theoretical maximum of around 400 lumens/watt. This might be 80-85 lumens/watt.
It feels good in the hand. But just too many things wrong with it to give it a decent score on build quality. I had to resolder the switch PCB, reseat the pill in the body and generally mess around far too much.
Other examples of it may be better, I hope none of them are worse. Or at least I hope that if there are any worse, they don't make it out of the factory. I've had it for over two months now and have just in the last 48 hours been able to render it usable.
Battery Life: ★★★★
Battery life rating given on the basis that it is driving an MC-E LED as it ought to be driven. This means getting 2.8A into the LED and a lot of heat out.
At 3.2A from an 18650 on high - 30-40 minutes but it is going to be very, very hot before that.
Current Draw on a freshly charged (4.248V) 18650 Not happy that the charger got it that high.
Low: 0.39A (More than 6 hours)
Med: 1.18A (2hrs on a 2400mAh cell)
High: 3.56A (about 40 mins on a 2400mAh cell)
I can hear the circuit "sing" to me on medium and low - presumably PWM (Pulse Width Modulation) in action. Strangely, with the tailcap on I can't hear it at all even with the light as close to my ear as I can get it. Will do runtimes but will need to keep an eye on the temperatures. It doesn't get as hot in the hand as the fearsome Ultrafire C3 stainless steel does. But then it has more mass for heatsinking. That bit of the design they appear to have got right.
Light Output: ★★★★★
I can summarise the output as "lots". Beamshots to follow once it gets dark.
Lightbox
High: 2380 lux This is in the 500 lumen ballpark
Med: 430 lux
Low: 151 lux
The only comparable light I have is the Aurora AK-P7 a single 18650 P7 light (The P7 and the MC-E share the same dies, the phosphors and the dome are different). It does
High: 1185 lux
Low: 153 lux
Throw at 1 metre
Low: 3,350 lux
Med: 11,000 lux
High: 29,500 lux (That is a LOT!!)
For comparison the Aurora on high does 16,050 lux and it is a bright light.
Here's a ceiling beamshot to be going on with. The Piritlight is on the left, the other three are (L-R) Trustfire F22 on low, Tank007 E07, Ultrafire C3 stainless steel. The lights are 60cm (2') from the ceiling and are tailstanding on top of the door.
I doubt that my backyard test range is nearly long enough for this light. I got impatient and didn't wait for full darkness, there is quite a lot of solar light pollution still (21:00BST). In an effort to lengthen the range, as well as the usual tree, I pointed the light at the telegraph pole in the bottom of my garden. If I remember correctly it is 6.5m high (21 and a bit feet) from what the lineman told me the last time the line needed repairing. That pole has been there since 1936.
Control
Low
You don't see it in these pictures but i could see a hole in the beam just above the tree trunk.
Medium
High
The hotspot has completely saturated the sensor. The base of the tree is way overexposed. The spill is pretty bright too. Not something you expect from a dedicated thrower.
Pole low
Pole Medium
Pole High
A comparison light, the zoom light mentioned here. #32 This is its first outing and a full review will get done in due course.
Flood
Throw
Pole throw
You can see that this has saturated the sensor at the top of the pole. Again that bit is way overexposed.
Summary: ★★ (Or ★★★★ if you get a good one)
If I'd not had the trouble I have had with it it'd be in the 4-5 star area, probably 4 because of the price. I want to give it a higher rating, I like it a lot. It produces a ton of light and throws it a long way. I'd like to do some longer range beamshots, but the local park would be a bad idea as I'd not go on owning my cameras for long if I set up there at night. It'll have to wait for my next sojourn in the wilds. It still needs some fiddling, but at least I know how to do it now. If you get a good one I'd suggest 4 stars. I didn't get a good one but I've managed to sort out most of the problems and will sort them completely. If I were costing the time I've spent on this light it would cost a lot. Hence the two star rating. As a working light it'd lose a star for the price, but it is a really good light when it is working.