Thanks, Steve, that helps. Jim
On Thu, May 2, 2013 at 3:23 PM, Steve Cotsford <cotsford@aol.com> wrote: > One 55 watt bulb would take approx 4 1/2 amps at 12 volts. A pair of H2 > bulbs would take about 9 amps. > > The bigger the cable, the lower the wire losses due to heat. However > even 16 ga would be ok for 2 regular wattage lamps. 14 ga would be better. > Yes the ground wires need to be the at least the same size as the > largest positive wires you use. > > Steve > > On May 2, 2013, at 4:01 PM, Jim Felder wrote: > > > I have a number of good 40A relays that I'd like to use on a lighting > > project. How many H2 bulbs would it be safe to power a pair of H2 bulbs? > > > > What wire size should provide power to the relays from the batteries > using > > a single relay? What about two? > > > > Would the wiring from the device to the relay be any different than the > > size from the relay to the battery? > > > > Do the ground wires need to be the same sizes? > > > > Where does one get the kind of female spade connectors with the little > tang > > on the side that keeps them in the plastic relay mounts that VW uses? > > > > Thanks, > > > > Jim > > |
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