Fuelled by Sensation Units that have the VotLW special rule have the Fearless and FNP (6+) special rules (units wiht an Icon of Excess instead have the Fearless and FNP (4+) special rules).
In addition, if a model that has the VotLW special rule is slain in the Fight sub-phase before it has made any Attacks that phase, it can make a single Attack at the end of the current Initiative step before being removed as a casualty.