http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180271979976&_trksid=p2759.l1259 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=180175615581&ssPageName=STRK:MEWN:IT&ih=008 Im having a little trouble putting this together with my lights.. Tell me if Im stupid, but can I some how get a 4" fan to work with my 600w HPS that has a 6" air coolable reflector? I bought the fan before the light, was that a mistake? Can someome please explain to me how I would get this in working order? If I can.. I would appreciate it. What " ducting hose do I need? Will this cause any problems? Will the hose clamps adjust to the size difference?