The Omni 5 set is a popular, high performing set of a front and rear light with compact forms but high output LED's. The EL135 front light has three LEDs and OptiCube lens technology for a wider, 150 candlepower beam with excellent visibility. Bright, lightweight, durable, easy to remove with the ability to run for 320 hours while flashing, this is the perfect everyday commuter safety light. The TL 155 has five bright LEDs to deliver great brightness with impressive runtime. The Omni 5 rear light provides 360 degrees of visibility and New Omni Directional Technology increases safety while three flashing modes rapid, flashing and constant, let you select the right level of visibility. With two AAA batteries, the Omni 5 will run up to 120 hours.