Light sensitive control system for automobile lighting circuits

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4. APPARATUS FOR ENERGIZING THE HEAD LAMPS AND TAIL LAMPS OF AN AUTOMOTIVE VEHICLE IN RESPONSE TO AMBIENT LIGHT CONDITIONS COMPRISING:

A SOURCE OF ELECTRICAL POWER AND A RELAY COIL, A NORMALLY NONCONDUCTIVE SWITCHING DEVICE CONNECTED IN SERIES WITH THE SOURCE AND COIL, A LIGHT SENSING DEVICE CONNECTED TO RENDER THE SWITCHING DEVICE CONDUCTIVE WHEN THE AMBIENT LIGH DECREASES TO A PREDETERMINED VALUE, A TRANSISTOR HAVING EMITTER, COLLECTOR AND BASE ELECTRODES, A SWITCH HAVING AN ARMATURE CONTROLLED BY THE RELAY COIL AND FIRST AND SECOND TERMINALS WHICH MAY BE SEPARATELY CONTACTED BY THE ARMATURE, BIAS MEANS CONNECTED TO THE FIRST TERMINAL, THE TAIL LAMPS BEING CONNECTED TO THE SECOND TERMINAL, THE ARMATURE BEING CONNECTED TO THE BASE ELECTRODE OF THE TRANSISTOR, THE SOURCE BEING CONNECTED TO THE EMITTER ELECTRODE AND THE HEAD

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4. APPARATUS FOR ENERGIZING THE HEAD LAMPS AND TAIL LAMPS OF AN AUTOMOTIVE VEHICLE IN RESPONSE TO AMBIENT LIGHT CONDITIONS COMPRISING:
- A SOURCE OF ELECTRICAL POWER AND A RELAY COIL, A NORMALLY NONCONDUCTIVE SWITCHING DEVICE CONNECTED IN SERIES WITH THE SOURCE AND COIL, A LIGHT SENSING DEVICE CONNECTED TO RENDER THE SWITCHING DEVICE CONDUCTIVE WHEN THE AMBIENT LIGH DECREASES TO A PREDETERMINED VALUE, A TRANSISTOR HAVING EMITTER, COLLECTOR AND BASE ELECTRODES, A SWITCH HAVING AN ARMATURE CONTROLLED BY THE RELAY COIL AND FIRST AND SECOND TERMINALS WHICH MAY BE SEPARATELY CONTACTED BY THE ARMATURE, BIAS MEANS CONNECTED TO THE FIRST TERMINAL, THE TAIL LAMPS BEING CONNECTED TO THE SECOND TERMINAL, THE ARMATURE BEING CONNECTED TO THE BASE ELECTRODE OF THE TRANSISTOR, THE SOURCE BEING CONNECTED TO THE EMITTER ELECTRODE AND THE HEAD

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