Froggy":3ry3bvc1 said:No one has mentioned Sodium lights yet. I guess there's a reason for that! I only bring them up because a friend of mine says he put two in a large barn and lit the place up like daylight and they were cheap to run. I have to point out that this friend is not known for his reliability, hence asking you guys!
Councils are replacing sodiums streetlights with led which suggests they are cheaper to run not that everything councils do makes sense :roll:
Metal halide is another option but again pretty sure they are not up with LED and fluo for efficiency.