What was found
UPON RETRACTING LANDING GEAR ON TAKEOFF, I NOTED BOTH MAIN GEAR INDICATIONS REMAINED RED. I CYCLED GEAR, RESULT WAS INDICATION OF GEAR DOWN AND LOCKED WITH GEAR LEVER IN BOTH UP AND DOWN SELECTION. THIS WAS AN ABNORMAL SITUATION. BEING THAT I HAD JUST DEPARTED THE AIRPORT AND WAS UNSURE OF THE MECHANICAL IRREGULARITIES CAUSE; I FELT IT PRUDENT TO RETURN TO BASE. I CONFIRMED GEAR DOWN AND LOCKED 3 DIFFERENT WAYS AS WELL AS FLYING BY THE TOWER FOR A VISUAL CONFIRMATION. TOWER INDICATED HE SAW 3 GEAR DOWN. LANDED WITHOUT INCIDENT.