never used the led one mate but have heard you need to get the white one not the red or green and when you do use a filter it fairly holds back the light apparantly taking into account of weight size battery etc the led one would win hands down in my opinion if and only if the unfilterd light matched the atom ,although the atom is more than enough light for an airrifle i would imagine the led one would provide enough for an air rifle also but at the end of the day its preference but one of each side by side would be the best way to field test them