Monday, June 23, 2014

LED Lensor SE07R ...and a Ben night ascent



With spending a fair amount of time out in the Scottish Mountains, a good headtorch is pretty much always in the rucksack. Must admit to being a bit of a torch geek and currently have five which get used for different applications depending on time of year and what I’m doing.

I was aware of the LED Lenser brand since we use them a lot at work (I work for a Railway Signalling and Control contractor so nightshift is part of the normal working week) and always found them a good balance of cost and performance and as part of the Trail Team, we got to choose from:



The SE07R was my choice based on the rechargeable battery and light output of up to 220 lumens.

The package includes the lamp unit, rechargeable battery and associated charger.




First thing I liked about the set up was the fact you can use either the supplied lithium battery of standard AAAs without much fiddling about. On environmental grounds, would opt for the recharging but good to know that for multiday or very long single days, there is another option. 

Couple of nice features – the charger is a standard micro USB which is the same as my Samsung phone so one cable will do a couple of devices and also the battery can be charged separate from the headtorch since the charging port is on the battery itself.

Other key features for me include –

  • Transport Lock – prevents light accidentally switching on when stored in the rucksack.

  • Variable Focus – wide flood beam to narrow spot.

  •  Smart Light Technology – Several Light Programs

  • OptiSense Active Light Measurement Technology mode – light output adjusts automatically.

  • Glare-free High End Red LED Light to protect night vision (useful when in a tent or shared accommodation)

With a Summer Solstice Summit ascent of Ben Lomond planned with my wee sister, there was a great opportunity to put the torch to “normal” use (okay …I admit I had already tried it by climbing to a cupboard at home). We left the car at around 00:30 with Irene using my other preferred top end head torch (a Petzl Nao) in order to give a side by side comparison – we both agreed the light output from the SE07R was actually superior (despite the Nao having a higher lumens specification) and it was clear from the outset the SE07R on full power was bright …very bright in fact !  A nice even light and the beam adjustment was simple – played around a bit as we climbed up through the forest section and settled on a wide beam which lit the path and sides well. Reckon the narrow beam would be useful when searching for a navigation feature or control point during a night race.


Perfectly Balanced Beam

Given the shortness of the darkness at this time of year, it was simple enough to adjust the main torch output as daylight started to arrive which would obviously help burn time. In addition, I also found the automatic light output adjustment pretty subtle which was one of the niggles with my other torch. We weren’t out long enough to compare the overall battery life of the two torches but given the ability to swap out batteries …don’t consider this as a major issue.
 
One concern I initially had was the battery and lamp unit being combined and the possibility of it feeling a bit “front heavy” whilst worn but very quickly never noticed wearing it to the point of forgetting to take it off once the sun was up. We had perfect weather but given that the SE07R has an IPX6 rating (aka Protected against heavy seas - Water projected at all angles through a 12.5mm nozzle at a flow rate of 100 liters/min at a pressure of 100 kN/m2 for 3 minutes from a distance of 3 meters) it should cope with the very worst of Scottish conditions. Interesting that the Nao is only rated at a slightly lesser IPX4.

Looking forward to further use out in the Alps and happy to say the SE07R has already become my head torch of choice for use here in Scotland. Reckon my teammates will appreciate the Red LED function when the inevitable happens and a wee night visit to the loo is required ! Given that the SE07R is also available at roughly half the cost of the Nao it represents outstanding value as well as great performance. 

A Happy Beard !

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