Bulb shapes

hey guys, i was wondering what shape does MH and HPS bulbs look like? Because im looking at this foriegn site and i cannot figure out which bulb is ideal for growing plants...heres the link.

http://www.hijungu.com/?OVRAW=%EB%9E...OVMTC=standard

they say that this is a 400 watt HPS bulb, however it has a belly...doesnt it suppose to look like thin cylinder shaped? Like this?

http://www.hijungu.com/?OVRAW=%EB%9E...OVMTC=standard

OK this is for Metal Halide... i someone told me that it should look like a regular shaped bulb with the belly... can some bulb experts help me out??

http://www.hijungu.com/?OVRAW=%EB%9E...OVMTC=standard
^
Thin bulb

http://www.hijungu.com/?OVRAW=%EB%9E...OVMTC=standard
^
regular shaped bulb

WHICH BULBS SHOULD I USE FOR BOTH HPS AND MH? THANKS!

ANYBODY????

no.sorry

they come in different shapes and sizes...it all depends on the company....

ya if it says its hps then u can use i for growing