150w HPS comes in both mogul and medium base bulbs most of your "grow lights" florolux or whatever and HTG remote ballast "What i have" are mogul base and the majority of your security lights in 150w hps are medium base but there are some mogul base also if your doing it yourself im not 100% sure but i pretty sure you could just change socket size just get a replacement socket for HID and whatever size your after. But if i was you i would go 250w and higher and make the security light a cooltube by cutting two holes in two sides attaching ducting hang and now your security light is cooltube and if you do it right you could go up to a 400w and put it anywhere. 150w lack a giant line of grow bulbs and im having a hard time placing any most are the fat ones like pictured but i have placed a few grow style 150w HPS but nothing to special anyone have some good sources.