One of the best lights I own is the Phillips Saferide -
http://www.amazon.com/Philips-SafeRi...llips+saferide

You'll want to buy a set of better AA batteries than it comes with for it (they have a bad reputation) -
http://www.amazon.com/AmazonBasics-R...ywords=aa+nimh

But the batteries charge just by plugging in the light, you do not need a seperate charger.

In my opinion it's the best light you can get for around $150 for road riding. Shaped beam, evenly distributed beam, lights up the road well.