In the short film “Afterglow,” skiers wearing LED lightsuits hurtle down moonlit slopes in the Alaskan wilderness. Philips produced the film as a promotion for its Ambilight lighting system. The film was created by Sweetgrass Productions, Philips TV, and Swedish ad agency Ahlstrand & WÃ¥llgren. A trailer is currently available — the full 12-minute film will be released on October 19th, 2014.