The combination of an EL520 front light with a TL610 on the back gives high performance set that is hard to beat in terms of brightness and runtime when compared to other battery lights.

Bright 5-LED Rear Light.
On the back of the bike you have the impressively bright TL610, which is a new release for the 2008 season. Cateye have taken the highly popular TL600 rear light and worked hard to improve battery life and brightness.
This is a great rear light, and a favourite among AW Cycles staff as it really does perform well without being too expensive.
It lasts a long time before the batteries need replacing, it is very bright and visible and has both constant and flashing modes to suit any situation or combination with other rear lights.
It looks great too.

High Performance On The Front.
For the front of the bike this set features the Cateye EL520. This light is tiny, but it cranks out more than 1,200 candlepower - plenty for casual riding or getting home from work.
There are 2 strength settings, so you can use the high beam for maximum brightness or the low beam to extend battery life.
Cateye's ultra bright LED combined with their opticube lens design kicks out a really nice, bright beam, and the output readings of 1200 candle power put this at the top end of the scale in terms of brightness.
Basically, to get a noticably brighter bike light you'll have to spend a lot more money and have a rechargable system.

As a set this is excellent value. Both lights are top quality and to buy them seperately would cost significantly more.

No brainer.

Batteries for both lights are included.