There are rules and recommendations for use of LLs at different altitudes and at different distances from airports.
That set aside when flying at night in VFR conditions we always had the lights on, because “see and avoid“ works best if the other airplanes can see you and avoid hitting you 
Our Saratoga had LED light fixtures in her wing tips and one more in the nose bowl. And I know from other pilots flying in the area that she was easy to spot.
During the day to be honest the lights make almost no difference so if I was still flying with regular bulbs I would probably use them only when in airport range and of course at night (though at times it is also good to practice a landing or two without landing lights)
In the sim bulbs don’t break because a glowing piece of wire vibrates too much and if they do they don’t cost any real money
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