Did you have to lower the T6s or keep them at the same height as the metal halide?
From: Chuck Hogg Sent: Saturday, June 03, 2017 7:59 AM To: [email protected] Subject: Re: [AFMUG] LED project We converted our HiBay MH lights to T6's with occupancy sensors a few years ago. The power company paid for 60% of it and it reduced our consumption by about 40%. It's paid for itself now. Regards, Chuck On Fri, Jun 2, 2017 at 8:17 PM, Chuck McCown <[email protected]> wrote: I’ll be over 100 years old and will probably be needing some weed at that point. From: Eric Kuhnke Sent: Friday, June 02, 2017 5:59 PM To: [email protected] Subject: Re: [AFMUG] LED project 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.
