SureFire KROMA and U2 Ultra LED Flashlights Review – The Gadgeteer
The Gadgeteer have published a review of the SureFire KROMA and U2 Ultra LED flashlights. ‘Both flashlights have an electronically controlled LED light source, not a traditional filament to burn out or break, that can last thousands of hours. The main body is similar, if not identical, on both flashlights. They are constructed of aerospace-grade aluminum, painted with a black Mil-Spec Type III hard anodized coating. There are two differences I can find; the LED heads (type of light) and how the tailcap switch activates the LED's. The tailcap switch allows for one-handed operation with your thumb. All SureFire flashlights are weatherproof and sealed with an O-ring. Both are equipped with a heavy-duty clip. A well engineered feature of these flashlights is a switch lockout which prevents accidental activation during transport or storage.’