ED37 vs ED28 mh style

Discussion in 'Lighting' started by The Letter 3, Jan 14, 2014.

  1. I was at the home depot today checking out the different mh and hps bulbs they had in 400 watts. I have been using the smaller size 28 bulb. While I was standing there I became totally baffled as to which one I should get. The 28 was less lumens at 36k and more pricey than the larger 38 at 39k lumens. Is there a major difference??? It sure looks brighter than before...
     
  2. the difference ...OK
     36000 
    -28000 
    ___________
    8000/ 1500(average cfl bulb) lumens
    = 5.3
    so the difference is equal to 5.  23w(1500Lu) CFL household bulbs, Yes its noticeable, check your ballast to see it it can handle that bigger bulb, email the maker or the shop you got it off
     
  3. Thanks Vostok! The ballast and hood I was running before "fit" the larger bulb and would power it but man there was about 0 clearance between the edge of the bulb and the reflector inside the hood. I could only assume that this was not a good thing. So I went out and picked up a 2nd arrangement. Thank you again for your input.Sent from my Galaxy Nexus using Grasscity Forum mobile app
     

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