that lamp will NOT work on a HPS control box this is what a MH conversion lamp looks like this is lamp will run on a HPS control box but will emit white light like a metal halide that bulb u have pictured is a standard MH veg lamp
Gazza2005au Reviewed by Gazza2005au on . Not sure...... I just got an order in the mail from the hydro store. I purchased a 400 watt MH conversion bulb. This is the link to what I purchased. http://www.hydroponics.net/i/242025 The bulb that showed up doesn't have anything on the package that says it will work in a sodium ballast. I called the shop and the dude swears that it will. He says that the manufacturer changed the packaging a year or so ago. The bulb that I have here is a sunmaster - neutral delux. I'll post a pic. Anyone know Rating: 5