s13 front-end conversion bulbs

[SilFortyTypeX]

I finished installing an s13 front end conversion on my car a couple days ago, the low-beam bulb came burnt out on the right side. I have the twin projector style front end, and I took out the bad bulb and I have been trying to find somewhere that has this bulb, or has something that can be used in place of this special type halogen bulb. The only success that I have found so far is somewhere said that they can order this bulb from japan for $100 a pair. So I was wondering what type of bulb, such as an H1 Halogen or other Halogen, could be used in place of this bulb if I manual wired it or did a conversion myself?