The features of our ballasts: 1. cold starting currents are smaller than 6A, does not injure the original vehicle wire and the fuse 2. cold starting waltage is smaller than 52.5W, does not injury the light bulb 3. hot starting currents are smaller than 3.5A, cannot affect the normal use of the automobile electric appliance 4. hot starting capacities are smaller than 35W, does not harm the light bulb. 5. The output voltage may enable above 155V old use normally (others cannot use so long as above 125v) theoretically our company´s slim ballasts can enable the light bulbs be 2000 hour life longer than the normal ballast. 6. The volume is so small that you can put it inside the pocket 7. Radiate quickly, in order to avoid burning out the vehicle wire and the automobile parts. 8 Use totally automatic producing technology 9. It passes European ROHS and E-mark certification 10.The shape of the slim ballast is very beautiful.My old clients love it vey much and they have a good market in their countries. 11. The interior uses the best Japanese Ruby War industry electric capacity, effectively enhances the product thermostable