Yes, you can Paint a Brass Lamp

It's all about the "prep" and the "paint." 

I picked this lamp up at a yard sale and paid $7.00 for it.  I purchased it because I liked the height and I love the curves,

The lamp is 29" tall from base to the top of the finial.

8" total width from arm to arm.
Weighs 6 pounds - this is a solid sturdy lamp.

If you've recently purchased any lamp, they are not as heavy. Very cheaply made. 

Step 1 - Clean with soap and water.

Step 2 - Sand - not heavy sanding just enough scratching to give the new paint something to grab onto.

Step 3 - Wash off again.

Step 4 - Remove or tape off any parts that should not be painted. Like the electrical cord.

Step 5 - Paint - I used spray paint and I paint outside in the sun. I used cardboard so I can easily move the item I am painting.

I use Rust-oleum or Krylon spray paint. Most of the newer colors already have primer included. But if not - then buy a can of primer. One coat of primer. Let dry.

Step 6 - Spray light even coats and you will never have drips or streaks.

Step 7 - After each coat, I let the item bake in the sun for at least 1 hour.

Step 8 - Let dry inside for at least 24 hours before removing the tape.

I have even baked items in my kitchen oven - and that's the key for a solid finish.

150 degrees F is more than hot enough for at least 1 hour. 

I have found that placing the item on the cardboard on brick or cement heats from both sides rather than putting in on my lawn or table. 

Here's the after.

   

I used Krylon Black Satin

All that's needed is a lampshade!