I have been looking all over for 25W or smaller tube infrared bulbs to fit my exo terra canopy as it just sits collecting dust in my closet and I feel that a 50/75W IR bulb/lamp is a bit overkill for my 12x12x12 5gal exo terra enclosure.
The canopy I have maxes out at 25W, I also have a dual canopy that maxes out at 40W I think (non exo terra), which I wouldn't mind sticking 2 25W IR and putting them inbetween both my exo terra enclosures.
I found this while snooping around google:
http://www.buy.com/prod/topdawg-pet-supply-25-watt-nightlight-red-inc-reptile-bulb/q/sellerid/20324102/loc/67447/211498958.html
That the same as IR?
I noticed that Exo terra doesnt sell anything small then a 50W infrared bulb, but they do sell 25w day,sun, and night-glos that fit the canopy I have :/