HP sodium Lighting [RE-wrenches]

bill roush billroush at gmail.com
Wed Feb 1 17:37:30 PST 2006


National Solar, the makers of the En-R-Pak, in New York, have used
their sine wave inverter on an HPS light they also make. It is the
only HPS system I am aware of.
Best,
Bill Roush
billroush at gmail.com
816-868-9695


On 2/1/06, Ray Walters <walters at taosnet.com> wrote:
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> Hi Wrenches;
>
> I'm doing a small lighting project for the University of New Mexico. It
> will be a demonstration for future students, as well as a hands-on
> installation for my current class. We are proposing using Bollard type (
> 3 ft pedestal lights for along sidewalks, etc.). The only reasonably
> priced units are AC, and are High pressure Sodium. HPS lighting is as
> efficient or more so than fluorescents, but I'm concerned about  the
> inverter for HPS lighting. MY questions:
> 1) Do HP sodium light ballasts require pure sine wave?
> 2) How much surge capacity do their ballasts require to start (35 watt
> light), worst case scenario, ie.  very cold, very hot, etc.
> 3) Anybody have a good source for DC bollards maybe?
>
> We found a site that had DC LED Bollards (wow!) but alas it was european
> and not available here.
>
> Thanks for sharing your wealth of knowledge,
>
> Ray Walters
>
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