Hps kit is ok ?!?!?!?!

is this kit ok for like 4 plants from seed to harvest or is it to week ? http://cgi.ebay.com.au/400W-HPS-HYDROPONICS-SPECULAR-LIGHTING-KIT-GROWLUSH_W0QQitemZ220508342463QQcmdZViewItemQQptZAU_Seed_Starting_Hydroponics?hash=item33575248bf

no this is a great wattage light i just dont suggest the hood or the ballast, i would suggest a electronic ballast and an aircoold or cooltube hood hps lights throw off sum heat so youll need sum great ventilation and what more than an enclosed hood hooked to a 6 to 8 inch inline.

http://cgi.ebay.com.au/400-Watt-Electronic-Ballast-Hydroponic-Grow-Light-Lamp_W0QQitemZ220508251665QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item335750e611 so this would be betta

so MH in veg and HPS on flowring

Yes, that would be great, but a MH conversion bulb for the first couple weeks is best. You can do it just read a lot online and go for it so much enjoyment out of growing your own smoke.... Have fun