Reddit mentions of Outdoor Research ActiveIce Spectrum Sun Gloves

Yes lighters start to fail around 15 deg F. It's the same reason that isobutane canisters fail in the cold. The vapor pressure is too low at those temps to have a reliable flame. You can store them overnight in your sleeping bag and warm them up as needed in your hands but it gets annoying to have to constantly keep doing this. I'm switching to firesteel/matches as my primary for firestarter winter trips (I now use an alcohol stove in winter). If you have a Caldera Cone/Ti Tri (or similar) I've found that this avoids the "tipping" problem of the whisperlite since you can just plop it down on slightly uneven snow and it never spills. This was actually the final straw that pushed me away from the whisperlite and towards alcohol stoves year round.

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For hands, this is the best system I've found for temps down to ~10F:

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1. very thin, fingerless sun gloves (These are my favorite but durability isn't great) .
   
2. shirt with thumb loops over the fingerless gloves. The Montbell Cool Hoodie over two synthetic baselayers (also with thumb loops) is my starting point for deep winter trips. It also has a kangaroo pouch which helps too.
   
   1. This combination by itself is remarkably warm especially if you are moving. I hadn't realized how much the warmth in my fingers could come from simply warming my hands/palms.
      
3. OR Overdrive convertible gloves (synthetic liner glove/ windproof mitten combo). I use to go with Skurka's Defeet liner gloves (wool blend) but they just absorb too much water (though they are still my favorite for 3-season conditions). These stay dry much easier if you drop them in snow or slip and brace yourself with your hand.
   
4. Optional: warm mittens--I don't usually take these.
   
5. OR Revel Shell mittens. These aren't insulated at all but are actually pretty warm. Durability has been good (2 seasons so far)
   
   I recently emailed Skurka about this and he recommended to take the plunge and get vapor barrier mittens from RBH designs (with altitude the liner) to replace the OR Revel shell mittens. I'll try these out soon as the above system gets quite chilly around 0F.
   
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   With whatever glove/clothing you use it's really important to get the snow off your body before it melts. I don't actually take much fully waterproof clothing and this strategy has worked really well.
   
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   Have fun! Cheers
   
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   edit: forgot to mention that I still love the Defeet Liners when it's cold but not snowy.