Back to article: Can You Spot the Mistakes in These Campus Security Photos? Previous Next What’s RIGHT with this picture? Scroll down to see the answer. ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ Answer: LED flat lights provide hallway lighting without the maintenance of fluorescent ballasts and save 20% more energy than fluorescent fixtures. Photo credit: LG Previous Next