Uno HL EL010: Never get caught without a light! The Uno represents the perfect light for every day around town commuting or for an emergency light for when you stay late at the caf. This light has evolved from a unit with multiple batteries and LEDs to a significantly smaller, highly efficient light. Uno. One battery. One LED. One bright light! Features: 400 candlepower. OptiCube lens technology. Flashing and constant modes. 60 hours run time in flashing mode. 15 hours run time in constant mode. Runs on 1 AA battery included. FlexTight Mounting bracket. Water resistant. NOTE: Must press and HOLD on button for 5 seconds to operate light. This is slightly longer than our other lights. LD630: Maximum attention. The CatEye Rapid 3 tail safety light includes a high power center SMD LED and two 5mm LEDs for outstanding visibility. Three modes allow you to customize your visibility. The rapid mode is an all out attention grabber, using all 3 LEDs in a unique pattern guaranteed to get you noticed. The flashing mode foregoes the high power center LED to save blinding your riding buddies, while the constant mode adds a daytime safety option. The included AA battery will run the Rapid 3 for up to 80hrs and comes with the SP 11 FlexTight bracket. Three modes allow you to customize your visibility.