Which bulb is better for humidity??

My bp is going into shed now and I want to make sure his humidity stays high enough. My setup is a wood enclosure with a heat mat underneath the warm end, a 60W white incandescent bulb on during the day, and a 50W ZooMed infra-red bulb on during the night. Both bulbs at warm end too.

My question is which bulb would dry the air out more? I obviously dont have the option of just having the white bulb on 24 hours if the answer is the infra-red. I could, however, switch the white bulb off and just have the infra-red on 24 hours if that would be better for a higher humidity?

Maybe they're both the same, but I don't know.

Any heat creating object will lower humidity, but bulbs do this more than most. Any heat lamp will lower the humidity drastically.

I'd get rid of them if I could but my cool side temps and my ambiente temps would be too low without the bulbs.