I have electric candle melters around the house and they usually come with 15 watt bulbs.  I had to buy 35 watt ones from CBConcept for the last one I bought and they work really well.  The latest melter I got didn't even heat enough to melt the soy wax with 35 watts, so I purchased these 75 watt ones.  Works like a charm.  It's pretty bright, so I don't use it as a "night light" as planned, but it is great in the living room for some much-needed extra light and the scent from my newly melted melters is divine!