Guest spootch Posted September 7, 2015 Share Posted September 7, 2015 Just a quick question- What's the life span of bulbs both cfl and hid ? Should they be swopped out each grow ? Also what do you do with the old bulb once swopped out ? Carbon filters, do you buy a new one or can you refill them ? How many runs could you average, what you guys do ? Quote Link to comment Share on other sites More sharing options...
Dabtzar Posted September 7, 2015 Share Posted September 7, 2015 With regards to HID you should change them out every 10 000 hrs. Or 4 grows. Keep the old bulbs in case you have a breakage and need one till you get a new one. Must carbon filters are closed with rivets, so just drill them out, and refill with new carbon. I've seen GTH sells carbon by the kg.. Quote Link to comment Share on other sites More sharing options...
CG420za Posted September 7, 2015 Share Posted September 7, 2015 I got a kg from hydroponic.co.za for R90 Quote Link to comment Share on other sites More sharing options...
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