I'm a big fan of the Knog Road lights. The 200 lumen version of the headlight (they've also a 300) and the tailight can be had together in a combo pack for about £113.

Tool-less mounting makes living with them a breeze, and they're plenty bright for most kinds of road use. They've several modes (and mode memory, so no shuffling each time you power on) but of most interest may be the setting that incorporates a steady light from one lens with an attention getting flash from the other lens (talking headlight).

USB rechargeable.