Zoom	Cateye EL-450 Compact Opticube £27.50 (Inc. 20% VAT) You save:  £7.49 (21%) Brand:  Cateye Qty:

Utilising a powerful 1 watt led with enhanced Opticube technology, the EL-450 is approx. 80% brighter than the successful 3 led EL-410. A great backup light for many mountain bikers thanks to an improved user friendly attachment system, the 100% waterproof EL-450 includes a locking switch to prevent turning the light on or off accidentally.
Flashing or constant modes.
Batteries included.