I want to buy some HID lights and start indoors soon. I hear that HID do not fit into regular light sockets. If i were to buy the bulbs and everything else, what do they fit into?
I want to buy some HID lights and start indoors soon. I hear that HID do not fit into regular light sockets. If i were to buy the bulbs and everything else, what do they fit into?
The difference in sockets is actually the size of sockets. In Europe the most common socket for HID lamps is E40. According to http://en.wikipedia.org/wiki/Edison_screw the closest american socket is the E39, so I guess that's the most common for HID lamps there.
Okay to efficiently use an HID light you need a ballast that matches the wattage of your bulb and then get a reflector with it so you do do not waste light. I recommend buying a kit because it will be cheaper, it will come with everything you need. A 400 watt system can range from 150 to 300 new, 600 watt can be 200 to 350 etc.. You can buy them online (ebay, htgsupply). Or a local indoor specialty grow store.
If you want to get the best deal I suggest you look on Craigslist, I see hoods and ballasts go for half their retail price or less all the time on Craigslist, just spend a few days to a week searching and eventually you'll find a great deal, good luck.