Sapphire Crystal Lens For Lumintop Emisar or Noctigon LED Flashlight
Sapphire Crystal Lens For Lumintop Emisar or Noctigon LED Flashlight
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MINGSWEAR
100% Sapphire Crystal Lens
Stronger than Glass
Scratch Resistant
7 Sizes
18 x 1mm for Lumintop FWAA
22 x 1mm for Emisar D3aa
23 x 1.5mm for Lumintop FW1A, FW3A and LM10
25 x 1.5mm for Emisar D4V2, KR4, DW4, D4K. NOTE: THIS IS .5MM SMALLER DIAMETER OVER THE STOCK GLASS
25.5 x 1.5mm for Emisar D4V2, KR4, DW4, D4K AND KRK
25.5 x 1.5mm for Noctigon KR4
32 x 1.5mm for Emisar D1 or Noctigon KR1
36 x 2mm For Emisar D4SV2
32 x 1mm for Noctigon KR1 but its .5mm thinner than the stock glass so you will need a thicker Oring gasket at the bezel
What is special about sapphire crystal?
Synthetic Sapphire: A synthetic sapphire crystal or “glass” is actually not glass at all. It is a very hard, transparent material made of crystallizing pure aluminium oxide at very high temperatures. Synthetic sapphire has the same hardness as natural sapphire gemstones, but without the coloring agents that give the gems their various hues. When it is heated, the synthetic sapphire forms round masses, that are then sliced into pieces with diamond-coated saws. These disks are then ground and polished into watch crystals. (One reason sapphire crystals are relatively expensive is that the tools required to cut and polish this extremely hard material are very costly.) Sapphire (whether natural or synthetic) is one of the hardest substances on earth. It measures 9 on the Mohs scale, which is a system for rating the relative hardness of various materials. (Diamond measures 10, the highest rating.) Watch crystals made of synthetic sapphire are often marketed as “scratch resistant” or “virtually scratchproof” because they are very difficult - but not impossible - to scratch. Diamond can scratch them; so can man-made materials that incorporate silicon carbide, which, with a Mohs rating of between 9 and 10, is harder than sapphire. So, if you accidentally scratch your watch on a simulated-stone surface or a wall that incorporates some of these silicon carbide materials, it could scratch the crystal.
Perfect for my FW3A, clean, clear, brand new as described. Bought as many as I could. Jackson Lee never disappoints!
Excellent product,loved it.
these crystals are real nice, I keep them in a few different lights. they're super clear, and very scratch resistant. specifically they help with the FW3A that usually gets circular scratches where the optic is when you tighten the bezel. doesn't happen with these lenses. they also look shinier and I don't notice any duv change compared to ARC glass.
Beautiful sapphire crystals . They even have nicely polished edges unlike most standard glass lenses I’ve seen in any of my lights. Excellent packaging from Jackson and delivered to Australia within 2 weeks from placing the order.
Great
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