  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.
Recently we came across with many queries regarding what does din mean for car stereo sizes or what size is a din for car stereo? Lets explain what is DIN first. Basically Car stereos come in two basic sizes: Single-DIN Car stereo and Double-DIN Car stereo. Single-DIN: 178mm wide x 53mm high; approx. 7 inchesâ¦