Please note that the specifications below are for the R5 version. The warm white version has an approximately 28% lower brightness, but the runtimes will be the same. Warm white tints are closer to the tint that you would see with an incandescent light like a MagLite.
Quark MiNi 123 Basic Specifications
Low: 3 OTF lumens, 150 hours
Medium: 40 OTF lumens, 8 hours
High: 189 OTF lumens, 1.2 hours
Special (hidden) modes:
Strobe 2.4 hours
SOS 7.2 hours
Beacon (Hi) 12 hours
Beacon (Lo) 60 hours
Length: 2.3 inches
Diameter: 0.80 inches
Weight: 0.62 ounces (w/o battery)