Help needed with headlight conversion

[apstguy]

Here is the deal:

I got headlight conversion units from Inpro carware for Christmas. I just got Silverstar bulbs today and put them in. I had e-mailed Sylvania about the difference between 9003 bulbs and H4. I had seen no physical difference in the bulbs at the store so I thought it good to ask. They told me 9003 are built to "higher tolerances" and H4 is for motorcycles. I got the 9003s. When I turned on my lights, my high beams were on but at very low power. When I switched to high beams, the low beams turned on low power. I felt the wiring and it was getting warm fast. I shut off the lights. What is the deal? Do I need to use H4s instead? What is the deal?!?!?