For a quick size comparison, the Quark MiNi 123 has a length of 58.42 mm (2.3 inches) & a diameter of 20.32 mm (.8 inches).Fenix E15
Cree XP-E R3, 1xCR123A, 10lm (30h), 75lm (4h16m), 140lm (1h51m), 1986cd (ANSI FL1), Length: 59.6mm, Diameter: 19.7mm
Wow!
That's a small flashlight! VERY interesting.
Any idea why it uses the R3 LED?
A XP-G is more effective..
Total internal Reflection is an optical phenomenon that occurs when a Ray of Light strikes a medium boundary at an angle larger than the Critical Angle with respect to the normal to the surface. If the Refractive Index is lower on the other side of the boundary no light can pass through, so effectively all of the light is reflected. The critical angle is the Angle of Incidence above which the total internal reflection occurs. When light crosses a boundary between materials with different refractive indices, the light beam will be partially refracted at the boundary surface, and partially reflected. However, if the angle of incidence is greater (i.e. the ray is closer to being parallel to the boundary) than the critical angle--the angle of incidence at which light is refracted such that it travels along the boundary--then the light will stop crossing the boundary altogether and instead totally reflect back internally. This can only occur where light travels from a medium with a higher refractive index to one with a lower refractive index. For example, it will occur when passing from Glass to air, but not when passing from air to glass.
Light reflects away from the lower Index of Refraction material (air) and continues to bounce down the object.
Of course I buy a Maratac AAA and then this Fenix E15 comes out!
To be honest though I am not sure I would want another CR123 Keychain light. My Fenix P1's O-ring got worn out quickly so it was always turning on without my knowledge. Throw was awesome but if I am stuck somewhere long-term (day+) with no power it will probably be easier to find another AAA then a Cr123. Also the P1's keyring hole broke so now my Fenix P1 is left ready for use by my bed
I'll have to wait for the review, if the throw is there I may buy it.
I just saw the mid/low/high... I guess I won't be getting one.I don't like mid-low-high rotation... but it's a nice little light. Anyone knows if it will be able to handle RCR's???
I measured the following lights in the off position:For a quick size comparison, the Quark MiNi 123 has a length of 58.42 mm (2.3 inches) & a diameter of 20.32 mm (.8 inches).
Awaiting some CPF reviews.
Wonder if it uses PWM regulation on lower levels ? ? ?
and... what's with the "perspiration elimination"?