Spark Complete Option Package
This package includes all available options: extra spot reflector, tripod adapter, mag mount adapter, belt clip, and headband, which makes it competative with eBay and other Asian sellers. Uses 3 AAA cells and has a reverse polarity protected circuit which is very helpful when replacing batteries in the dark. When mounted on head with NiMh batteries weighs 115gm. Length:68mm, Width:31mm.
It's almost like this light was purpose built for mountain guides that shave their toothbrush bristles and armpits to save weight on multi day trips, weighing it in at 70gm when in your pack with no battery. If you look at the heat dissipation fins you'll note they are contour cut at their base to follow the battery compartment - efficent for cooling but also saves on excessive weight. There are no flimsy plastic hinges that easily break or encourage gravitational forces to slowly pivot the beam toward the ground. The center strap also mitigates beam stability.
What sets the SD series apart are the options for accessorizing them. Included with the light are a pocket clip, and a magnetic pad that screws onto one end, allowing the light to be attached to any ferro magnetic surface. Even more significant is the optional screw on reflector. By removing the bezel from the front of the headlamp you can screw the reflector in, and change the beam from a 115 degree flood to an 18 degree spot with a range of 120m. This feature is what made this series an outstanding choice for backcountry use: flood wall for camping or rescue work, forward looking spot beam with spill for travel or evacuation. A tripod adapter, magnetic mount adapter and pocket/belt clip are standard with our SD package.
Special Build: The SAR Version
We have created a build using an XM-L2 warm white emitter with a high CRI value of >80 for specific use of patient assessment or close proximity searches around last seen points. This mod is available for all the SD series. We picked the SD as the most suitable lights for this mod due to the ability to use the flood lens during searches, rescues, or for just camping. When looking at patient skin tones for cyanosis or doing a cap refill test for example, you'll note a significant difference between the 6A3 binnned emitter we're currently using for this mod, and any other emitter with a higher BIN but lower CRI. This emitter does not produce as many lumens as the T5 normally used in the stock Spark, but it is still pretty good and will greatly facilitate the ability for you to do your patient assessment, or identify the presence of pointer items in a search area accurately and with greater ease. In fact this tint also is simply more pleasant around camp for chores, or reading, etc. When clipped to your hip belt with the flood lens it does a remarkable job of improving your situational awareness when hiking, scrambling, or skiing as well. Just pick the SAR Option on the picklist on the 'Submit Order' page to choose this option. Quantities are limted, so allow one week lead time to do this mod.
Best use scenario...
Perfect as a reliable 'EDC' (Every Day Carry) light. For example you day ski various locations where you may have a 2 or 3 hour approach. Your only battery source is your BCA Tracker avalanche transceiver that takes 3 AAA batteries. Aroung mid afternoon you have an unexpected equipment failure or other unexpected delay, and darkness closes in as you ski out. As you are now clear of avalanche terrain, you can remove the cells from your transceiver and put them into the 75gm headlamp that is in your pack. The medium setting of 70 lumens could give you up to 5 hours of light, so if you have to toggle the 'Super' setting on to get 280 lumens for the downhill sections, you still have plenty of battery life to do so.
If you are in the habit of placing batteries into your device when you go out the door, you will start the day with 1000mah if you use the GP NiMh AAA cells, and 850mah if you use the Recyko's. 24hrs later, the NiMh will have about the same capacity of the Recyko's due to the high first day initial discharge rate characteristics of NiMh. So when it comes to AAA cells GP Recyko's are the way to go because there is no signifcant advantage to having the higher initial 150mah capacity of the regular NiMh after a day has gone by. Also note: GP Recyko cells have the same characteristics as Enloop cells.
Following are the approximate runtime for this upgraded lamp using an XM-L2 emitter and 4.2v rechargeable 10440 Li-Ion cell plus 2 dummy cells* (for three AAA Lithium primary cells multiply times by 4X):
* Using 3 AAA NiMh LSD cells will significantly increase run time, but lower lumen output.