Light distance for seedlings

[Klaatu]

I have 2 seedlings (Pure Power Plant) and I have my grow light 'plant light bulb' that I got at Home Depot. And I was hoping for some help here regarding the distance that bulb should be from my 2" h. girls?

 

[OzBud]

What sort of globe is it? CFL?

 

[Klaatu]

Well, if I understand you correctly I'm gonna say it isn't a cfl but a incandescent bulb, within a 10" reflective dome.:

http://www.homedepot.com/p/Philips-60-Watt-Incandescent-A19-Agro-Plant-Light-Bulb-429480/202762720