Need help associating (referencing a secondary cell) A1 to B1

I have a worksheet where I want a pulldown list, which I can do easily, however, in the reference cells for the pulldown list I have a column of data next to it that I want to show up in the cell next to the pull down list when a cell is selected.

To further explain this the worksheet is an amperage calculator, I work for a lighting company. I want to have a reference sheet as such, Where the first column is the fixture type and the second column is the wattage associated with that fixture
A1: FIXTURE1 B2:2000
A2: FIXTURE2 B2:2500
A3: FIXTURE3 B2:1800
A4: FIXTURE4 B2:1000

On the actual load calculation part of this sheet the pull down list will be the range A1:A4, and in another cell I want it to automatically input the wattage for that row.

How can I do this? Any ideas, I really need to get this to work soon!