ha, ha, maybe in the year 2065.
On Fri, Jun 2, 2017 at 4:50 PM, Chuck McCown <[email protected]> wrote: > I am waiting for Utah to legalize recreational weed.... > > *From:* Eric Kuhnke > *Sent:* Friday, June 02, 2017 5:27 PM > *To:* [email protected] > *Subject:* Re: [AFMUG] LED project > > If you can get the light spectrum as broad as possible, sell them to WA, > CO, OR, AK, MA and other state legal weed growers. The amount of 1000W > metal halide and high pressure sodium light systems in use is nuts. > > > > On Fri, Jun 2, 2017 at 3:54 PM, <[email protected]> wrote: > >> Made some significant progress on a high bay metal halide LED replacement >> project today. >> Can you tell which light is mine in the photo? If you look on the floor >> you can see some labels we put down for a grid. I measured the LUX at each >> grid point with metal halide and then with my LED. >> >> If I integrate all the points on the grid, my LED is only 16 LUX lower >> but at less than 30% of. The 300 watts is the max rating of my LED >> drivers. I have not actually measured the input power yet, but I am pretty >> sure it will be lower. >> >> In an industrial setting you get hammered for your demand charges. The >> highest power draw in a 15 minute window each month. I pay $14.62 per kW >> demand. My warehouse burns 24kW just for the lights. So just turning on >> the lights for 15 minutes one time in a month the bill is $350. Plus the >> energy charge of $158/month for running them 8 hours a day. >> >> This will take 16.8 kW off the demand which will save $245.62 each month. >> Energy charges will be reduced $110 each month for a total savings of >> $355.62/month if I convert all the fixtures. Not sure what it will cost me >> to make each fixture but I might be able to sell them for that or a bit >> more. Once done, if I turn this into a released product and someone >> converts a warehouse like mind, the payback will be 12-18 months. >> >> I am pretty jazzed. I have some heat issues. Right now I am using >> forced air with muffin fans but we all know how reliable those things are. >> I hope to have a heat pipe version working soon. No moving parts. Silent. >> >> Then comes a dimmable version, a network version, motion sensor versions >> etc. I can be pretty busy on this if I choose to do so. I am envisioning >> a phone app where workers can turn on a light in the back corner if they >> need it and either turn it off when they are done or it will time out after >> 30 minutes or some such thing. We can do time of day programs etc. >> >> Best of all, my old metal halides are the type that take 15 minutes to >> come back on if there is a power bump. These will be instant on. > > >
