Was just reading the tutorial on Parcans... Thought I might add some stuff in here... If you have ever heard someone refer to a Par 16 as a birdie, there is a very logical explanation.... in golf a birdie is one under par Just relate everything to golf and you'll be fine! NFL: Narrow Flood Light MFL: Medium Flood Light VNS/VNFL: Very narrow spot/Very narrow flood light NSP: Narrow Spot Feel free too add/correct that list... I think some apply to other fixtures but mainly parcans, you might often be asked when placing a hire if you want a MFL or NFL can!