  The amperage is on the label of the ballast. When you connect the ballast to power you will see it along with the voltage and pf of the ballast. F40T12 twin 8 foot tubes, ballast usually draws about .75 amps. The amperage is on the label of the ballast. When you connect the ballast to power you will see it along with the voltage and pf of the ballast. F40T12 twin 8 foot tubes, ballast usually draws about .75 amps.
A Single Din is the standard size of a head unit (the stereo in the dash of your car) a double din is twice as large. Double dins are good for cars that have large stock head units like a caddyhas.
DIN is defined as an acronym for Deutches Institut fur Normung, which in English means German Institute for Standardization. An example of DIN standards are the specifications used in engineering or in establishing technical uniform procedures, methods, processes, criteria, or practices. noun. The definition of a din is a loud sound or clamor. The banging coming from an open kitchen at a restaurant is an example of a din. Din is defined as making loud sounds. To bang on pots and pans is an example of din.