it dose not put out 230 lumens, ultrafire over rates its stuff, but i bet that this light is brighter that the "230lumen DX lights" the drop-in's that they say are 230 lumen's are WAY under driven, but if they did as good with this light as the last one it well be driven decently hard(here is hoping for 800mah)

my guess would be about 150 to 170 lumen's, and that's hardly noticeable from 230 lumen's

i don't have this light but i do have the p4 one modded with a q5 and new driver bored, driven at 1100mah and thats about 230 lumen's, as for it being good for trail riding, well...its great for road riding somthing a little more floody would be better but it would be GREAT for a headlamp to go along with a flood type light.

anyhow get this light