| Its pretty much impossible to compare lights on paper. Even comparing halogen to halogen or LED to LED is difficult, because how well it works depends as much on the beam as the power of the light. Even those that claim to have the same beam angle can be rather different from torch to torch.
Use power and beam width as a vague guide to work out which torches to look at, but its worth getting some subjective comparisons of those you're considering before making the final decision.
David |