Looks like a nice light to light the road or path. This should make you quite visible too.
The Dual Cross 300 is a high powered LED light. These are fairly bright and much more efficient than older style halogens, however there are more powerful halogens available. The brightest bicycle lights available are HID lights. HID lights are as efficient or more efficient than LED lights and come in more powerful versions. Most HID lights on the market are 10W or 13W and are about as bright as car headlights.
AA or AAA powered LED headlights will improve your visibility on the road but these will not provide much light to see by and will be washed out by brighter traffic and street lights in busy areas. The 1W and 3W LED head lights and 5-10W halogen headlights are bright enough to be seen in busier environments and can light a road or trail for moderate speeds.
I use a combination of a 1W and a 4W LED headlights for my urban commute.

Craig