The actual stamp has 13 candles on the mount, however, depending on the age of the person you are making for, you could use the right number of candles for any age birthday. Here I have only inked up 10 of the candles on 3 strips to make a masculine 30th birthday card for one of my friends' husband. You could add any number of candles using a Stamp-A-Ma-Jig to line them up. This works particularly well for mens cards (we all know how difficult they can be !)
The DSP used here retired from the catalogue last year but you can use any colour, take cardstock colours to co-ordinate and then colour candles accordingly. To finish, I used Crystal Effects on the candles to give shiny 3D effect as if they are glowing.