Blue daylight bulb? What kind of nonsense is that? The only time I went outside and thought everything was blue and I had a blue house with a blue window
Blue is the color of all that I wear
Blue are the streets and all the trees are too
I have a girlfriend and she is so blue
Blue are the people here that walk around
Blue like my Corvette, it's in and outside
Blue are the words I say and what I think
Blue are the feelings that live inside me
I'm blue da ba dee da ba daa
Da ba dee da ba daa, da ba dee da ba daa, da ba dee da ba daa
Da ba dee da ba daa, da ba dee da ba daa, da ba dee da ba daa
Oh damn it, now that song is stuck in my head again...

... Thanks!
But colored light is bogus for your chameleon, just get a regular household bulb and I reckon 60watt should be sufficient in most cases... You may want to get him some more branches tho...