Length: 6.3 inch (15.9cm)
Body Diameter: 2.4 inch (6.1cm)
Head Diameter: 1.5 inch (4.0cm)
Body Weight (excluding batteries): 12 ounces (340grams)
Battery: Four CR123A lithium batteries or Two 18650 Li-ion (button-top cells only)
Operating Voltage Range: 5.4V to 13V