I need to build pulsating LED light,between 6 and 12 volt powersource,but pulse frequency MUST go higher with voltage raise,so if its one blink a second with 6 volts ,it should be like 0.5 sec with 9 volt and so on.i was looking for something like that ,just cant find it on market.thnx ahead for any reply.Btw I`m not a pro in electrics so something more simple would appreciate higher .Thanks