yes the box is very heavy and the manufacture date says 1998 but i cant find the the numbers i need to google all it says is high intensity discharge grow light/high pressure sodiumn and one one of them somebody wrote in black marker Mh 400 watt. if you can use 2 typs of bulbs then i think who ever had them before used one for MH and the other a hps that would make sense wouldint it.
i no what ill do ill take some pics of the units and besides you all need to see my 1 outdoor plant in my back yard shes looking good i think im still a newbie
wishpotwaslegal Reviewed by wishpotwaslegal on . help on lights pleas ok i ended up getting 2 light fixtures from a grage sale(homegrown high intensity discharge grow light/high pressure sodium) they have all diferent amounts of wattage marked on the sticker thats on the box. the box plugs in the wall with a normale 3 prong plug and another cord is hooked up to a light socket with a big dome around it. now on that sticker the 400 watt mark is colored in and on the other one someone marked in black marker 400watt MH. is anybody famillure with theese typs of Rating: 5