PDA

View Full Version : High Bay Metal Halide lights?



elementboarder
06-13-2009, 01:00 PM
Has anyone ever used these, or see why they would or wouldnt work? I found some locally for a very good price, and am thinking of snatching up a few.

These are the lights im talking about

http://www.prolighting.com/crewbh14400mau-8.html

Thanks!

If it makes a difference, I am growing mainly lettuces in a DWC system.

willard3
06-15-2009, 07:04 AM
High-bay reflectors do the opposite of what you want, ie, they focus the light into a narrow beam. If your grow room is 30' high they will work.

They will work lower, but will not work well.

Sunlight Supply
06-15-2009, 09:21 AM
Willard is correct, these fixtures are made to work best hung from a distance. The price difference between a basic horticultural MH light isn't that much more. Try to stick with a horizontal reflector, it's made to direct light down to your plants instead of sideways into the reflector. Even the cheap wings will work better than a fixture like this. I get asked all the time about used high bays, be advised these fixture probably are not ready to use without a tune up. Most of these are very old and need lamps, new capacitors, or worse need new transformers. Even though they fire up, doesn't mean you are getting the full output of the light. Basically they will work and they will grow plants, but not efficiently.

elementboarder
06-15-2009, 01:39 PM
So would I be better off with a 400w high bay MH, or a 150w HPS system? I can get the high bays really cheap locally, 25 each. But I am willing to spend more if the HPS would be better. Thanks.

elementboarder
06-15-2009, 01:42 PM
Also, what about a light such as this?

http://cgi.ebay.com/150W-150-watt-HPS-ED17-LU150-High-Pressure-Sodium-Bulb_W0QQitemZ270235802442QQcmdZViewItemQQptZLH_De faultDomain_0?hash=item3eeb4f1b4a&_trksid=p3286.c0.m14&_trkparms=65%3A15|66%3A2|39%3A1|240%3A1318|301%3A1 |293%3A1|294%3A50

It says it has an e26 medium socket, which is the same kind used in standard house lamps if i am correct. Would that work, screwing that into a normal light socket? I have a feeling it wouldnt but if it would, thats a great deal.

Sunlight Supply
06-16-2009, 05:36 PM
The lamp you posted is a "medium base" 150 hps lamp, and although is the same base as your sockets at home, it will not work. Since it's a HID lamp you will need a seperate ballasts to drive it. The high bays at $25 a piece is a great price, but please remember that it may need parts to get it running at full capacity. If its older than 5 year you will need a new cap, or worse a new transformer. Just becuase it lights up doesn't mean you get the full output of a new one. To answer your questons about the 400mh high bay verse the 150hps. If both were brand new and you are doing veg production the 400 mh HB will out perform the 150hps. But remember your power consumption is over twice as much also.

Unregistered
06-17-2009, 12:35 PM
so i ended up getting a 100 watt high pressure sodium light from lowes, regular price $80, on clearance for $20. That, along with the couple hundred watts of cfls im running, should be good for me for now. In the future though I plan on just going for a 400 watt hps system for when i start growing tomatoes and peppers and more light- dependent plants.

annieshanta
06-23-2009, 12:01 AM
I haven't try using.But as far as i know it is fixtures for commercial, industrial, and institutional lighting applications over 15 foot high. Available with heavy duty die cast aluminum or acrylic reflectors. Adjustable bracket design allows for easy adjustment of reflector for different photometric patterns. ISO9002 compliant and UL Listed for damp locations. All fixtures include MP Open Fixture Rated Metal Halide Lamps. All fixtures contain Multi-Tap ballasts that are wired for 120V input voltage
__________________________________
gambling (http://www.casinoriva.com/?lang_select=en)
Casino en ligne (http://www.bestworldcasino.com/)

Unregistered
07-18-2009, 10:07 PM
Has anyone ever used these, or see why they would or wouldnt work? I found some locally for a very good price, and am thinking of snatching up a few.

These are the lights im talking about

http://www.prolighting.com/crewbh14400mau-8.html

Thanks!

If it makes a difference, I am growing mainly lettuces in a DWC system.

that light would work if you remove the reflector and make the ballast remote. check out this link.


http://www.rollitup.org/do-yourself/164853-how-use-industrial-low-bay.html