how can Idrive 12vdc @6a from 4093b

I'm trying to make a set of solid state wig wag headlights (alternating on/off from side to side) I'm using a 4093 oscillator to get the offset outputs but can't figure how to drive a transistor hard enough to get full brightness..I'm presently using a 555 with mechanical relay but the relay life is not too long...Thanks

Use a power FET. The switch is in positive or negative rail?

Use a power FET

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Look for a FET with a very low Rds(on), less than about 0.1 ohm.

Possibly, you can use MTP3055 or BUZ71, or IRF540N.

Sebi.. the switch can be in either the pos or neg rail..

If using an N-type FET, put it in the negative rail, you can drive it directly from the logic.

I spoke too soon..The switch must be in the pos rail, otherwise the high beams won't work under normal conditions..I made up a circuit with the FET and it worked perfectly, but if I disconnect the neg to the headlight and replace it with the switch I'll lose normal function of the high beam..Would there be a problem using a N -channel on the pos rail?
I would like to stay with the N-channel because the gate voltage I'm using is pos ..and all the boards I have made up for the trucks are the same, I was planning on replacing the mechanical relay with FETS...
Thanks again

Maybe this help...

Thanks everyone...Works great !!