Area Lighting For Pipe Guy

mdshunk

Your PM mailbox got full, so here it is in the open forum:

What's killing you there is the low wall height on the pool house. If you mount something on the pool house, you'll never get the beam spread that you need to cover 20' each way. You could use a set of floodlights, mounted on a cluster cover, with 3 heads. One pointed central, and the left and right ones pointing to each side. This is an invitation to vandalism.

You could use a wallpack fixture, since they are quite vandal resistant. They do not, however, have the lateral beam spread to cover 20' to each side when only mounted 6' off the ground. IF the poolhouse is almost as long as the area to be illuminated, you could mount 3 70w HPS wallpacks along the poolhouse, one at each end and one in the middle. This would do a good job, and also reduce light pollution in the surrounding area. I suspect that the pool house is not that long.

This leaves you with mounting a slipfitter light on top of a rigid conduit affixed to or through the poolhouse roof. You need a distribution pattern that is substantially left to right, and not so much "out" from the building. To get the light from a single fixture to go 20 feet left and right, you'd need to mount the fixture around 20' in the air (assuming 45* on each side of center field spread as a rule of thumb) if the fixture has flat glass. If the fixture has a refractor that "hangs down" or is like a bubble, it will spread more light left and right. Cheap and cheesy, but effective, would be to mount a 175w dusk to dawn "barnyard light" on top of a 10' stick of rigid on the roof.

Mounting a fixture at some height is what you need to do. Generally, these are called "roadway lighting fixtures", even if you're not lighting a roadway with them. They can be generically described with code letters. The first letter, S, M, or L (short, medium, long) for how far up and down the street they light. For your application, you need an "L". The next letter, C, S, N (cutoff, semi-cutoff, non-cutoff) designates how much light is directed above the horizontal plane of the fixture to control "urbal glow" and light pollution. may or may not care about this. The last letter, roman numeral really, is I, II, III, IV, or V is how much light is directed "out" from the fixture. V is circular, I is substantially left and right only. III is most popuar. You need an "LC3" or an "LS3" or an LN3" roadway lighting fixture, in pure generic terms.

GE lighting is the manufacturer that I prefer for roadway lighting applications.
That said, this fixture is a real workhorse: https://secure.ge-lightingsystems.co...oad_m250r2.pdf

You might note that you "assemble" the part number to get the light distribution pattern you need. You can get this one in an "L" (long) distribution pattern.

...sorry I couldn't be of more help.

PipeGuy

That's a good idea. In fact, my cost sensitivities have likely played too large a role in my thinking so far and I overlooked 'the best' solution - that you've just outlined. The pool house is plenty long to do what you describe. I'll look for some 'wallpack' fixtures.

Zoning covenants preclude me from doing so. In fact, now that I think about it, the reason the site lighting sucks on that end of the deck is probably rooted in those covenants.

yeah...OK

mdshunk

Groovy. If you choose Wallpacks, they normally have a polycarbonate lens. You can also get a wire gaurd for them to further make them less tempting to kids with trouble on their minds.

Teetorbilt

Groovy???? Somebody actually said that? OK, Simon & Garfunkle but we always worried about those 2 anyway.

__________________
You can't solve you're problems with the same level of thinking that created the problems.

Albert Einstein

mdshunk

I say 'groovy' all the time. I'll admit, it does get strange looks from people from time to time.

Now, where's Marsha?

Evapman

AWWWW MAN! it's always Marsha Marsha Marsha!!