Dimension：

36.0 X 75.0 X 21.9mm

Weight：

41.6 grams (light unit and battery)

Light source：

Red LED X3

Battery：

AAA alkaline battery X2

Runtime：

Approx 100hrs in constant, 150hrs in flashing, and 200hrs in rapid mode

Mount size：

φ12.0～32.0mm (FlexTight SP-11)

Other：

Clothing clip included