cryptonenologist
Member
- Location
- San Juan Bautista, CA
- Occupation
- Engineer
I've got a cleanroom buildout with 224 50W surface mount LED panels that are fed by constant current drivers. I need 58 of them to have the 90 minute reserve power for egress lighting. We are running tight on budget so trying to find the most cost-effective option.
I've been looking for a emergency driver that can match the 50W 600mA output of the drivers I have and haven't found much. This isn't my area of expertise and I'm assuming a lower wattage would be fine(verified by the photometric modelling) but I'm having trouble finding a constant current emergency driver. If I did find something, these look to be $75 and up so that will run a minimum of $4k for the drivers.
My other idea was to provide UPS with 90 minute capacity. I hate to convert DC to AC to DC when I can avoid it, but if I can't find emergency drivers this is a simpler problem to solve. I'd need 3kVA of output, and about 5kWh of capacity to ensure the 90mins of runtime. My drivers can take up to 240v input so a 208v single phase unit would be ideal. Anyone sell something like this off the shelf? Goalzero has close to what I need but it really isn't intended for commercial and would be 120v. Looking at Eaton those are seriously pricy.
Final idea was to redo my photometric with bugeyes. I think I could get away with about 50 bugeyes and if I go with the cheap manual test ones they would be $44 each and I would need around 50 of them.
Any thoughts are appreciated.
I've been looking for a emergency driver that can match the 50W 600mA output of the drivers I have and haven't found much. This isn't my area of expertise and I'm assuming a lower wattage would be fine(verified by the photometric modelling) but I'm having trouble finding a constant current emergency driver. If I did find something, these look to be $75 and up so that will run a minimum of $4k for the drivers.
My other idea was to provide UPS with 90 minute capacity. I hate to convert DC to AC to DC when I can avoid it, but if I can't find emergency drivers this is a simpler problem to solve. I'd need 3kVA of output, and about 5kWh of capacity to ensure the 90mins of runtime. My drivers can take up to 240v input so a 208v single phase unit would be ideal. Anyone sell something like this off the shelf? Goalzero has close to what I need but it really isn't intended for commercial and would be 120v. Looking at Eaton those are seriously pricy.
Final idea was to redo my photometric with bugeyes. I think I could get away with about 50 bugeyes and if I go with the cheap manual test ones they would be $44 each and I would need around 50 of them.
Any thoughts are appreciated.