FEATURES:-500 Lumens-Multi-Fuel - Uses rechargeable USB battery or two CR123A lithium batteries-TEN-TAPA(R) Programming allows selection of three different operating programsPRODUCT SPECIFICATIONS:Dimension 1.65 X 2.20 X 6.00Height 1.6500Width 2.2000Length 6.0000BODY MATERIAL AIRCRAFT GRADEMAJOR COLOR BLACKLENGTH IN INCHES 5.14WEIGHT IN OZ 4.4OTHER FEATURES: AIRCRAFT ALUMINUM BODY INCLUDES 1-18650 USB LITHIUM BATTERY ONE HANDED OPERATION OF MOMENTARY, VARIABLE INTENSITY OR STROBE MODE C4 WHITE LED HIGH SETTING 500 LUMENS LOW SETTING 40 LUMENS USB CORD INCLUDED