church interior lighting - advice needed

[kenny james]

been asked to price up on replacing a churches existing 12 of 500watt cheap halogen security lights used for the main lighting within the church they are approximately 25 feet high up, my suggestion to them would be to change them to metal halide light units i have suggested they would only need 8 of the metal halide lights instead of the current 12, what my question is due to the height i am asking for advice if anybody would suggest what would be the most appropriate wattage 150w,250w or 400w bearing in mind the church has asked me to take into account that they want to save money on there electricity bill without keeping there congregation in darkness!,my thoughts would be 400w but if i can get away with 150w/250w that would be better (i did suggest solar which they said was out of the question). any advice would be appreciated.

 

[kenny james]

thanks everybody for your input!!! very much appreciated to each and every one of you i think LED is definately the way to go after reading everyones comments especially when it concerns the height involved in replacing lamps.

 

[Marvo]

I would do a cost analysis for LED and see what the payback time would be from the electricity savings. It might make it an easier sell when you give them the bad news about the higher capital expenditure.

Moved out of PAT Testing forum.

 

[jumpin jax]

The trouble with metal halide is if there is a power cut for a few seconds at night time the church will be in darkness until the fittings strike up again.