Ranger, can you use both effects of Flame Arrows and Lightning Arrow at the same time?

@aleque_b @JeremyECrawford @ChrisPerkinsDnDas a Ranger, can you use both effects of Flame Arrows and Lightning Arrow at the same time? only if cast by 2 different characters due to both spells requiring concentration

— (((Mike Mearls))) (@mikemearls) August 29, 2016