NIGHT TKOF AT UNCTLED ARPT. RPTR PLT TOOK OFF WITH NO RWY LIGHTS. APPARENTLY THE ARPT HAD PLT CTLED LIGHTING AND RPTR FORGOT TO ACTIVATE THEM. RPTR ATTRIBUTES FATIGUE AS A MAJOR PART OF HIS FORGETFULNESS.

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IT SEEMS LIKE FLT INSTRUCTION IS EITHER 'FEAST OR FAMINE.' INVARIABLY; I'LL HAVE A PERIOD OF A WK OR TWO WHEN BUSINESS IS SLOW AND THEN; ALL OF A SUDDEN; EVERYONE WANTS TO FLY AGAIN. THE SCHEDULE BECOMES TIGHT AND; IN AN EFFORT TO ACCOMMODATE THE STUDENTS AS WELL AS MAKE UP LOST REVENUE; DAYS OFF ARE ERASED AND THE WORK-DAY LENGTHENED. USUALLY THERE'S AN EARLY START FOR THE 'MORNING PEOPLE;' THEN THE USUAL DAYTIME STUDENTS; AND AN EVENING FLT; IN THIS CASE AT A NEARBY ARPT. ON THIS PARTICULAR DAY; I HAD BEEN 'ON DUTY' FROM XB00 AM UNTIL XP00 PM. THE NIGHT BEFORE I RECEIVED ONLY 5 1/2 HRS SLEEP SINCE I HAD STAYED UP TO FINISH SOME JOB-RELATED PAPERWORK. AND TODAY; DUE TO HOW THE STUDENT SCHEDULE CAME TOGETHER; I WAS UNABLE TO EAT PROPERLY DURING THAT 14 HR PERIOD. IN SHORT; WHILE THE 8 HR 'MAX DUAL FLT IN A 24 HR PERIOD' RULE HAD NOT BEEN EXCEEDED; I WAS STILL OVERWORKED; MALNOURISHED; AND FATIGUED. THE DEG OF FATIGUE DID NOT BECOME APPARENT UNTIL I DEPARTED THAT 'NEARBY ARPT' FOR THE SHORT SOLO COMMUTE BACK HOME. AFTER A THOROUGH PREFLT; I TAXIED THE CHEROKEE 180 TO THE RUN- UP AREA AT THE APCH END OF RWY 4 AT I12. DURING THE PREVIOUS TRAINING FLT; MY STUDENT AND I HAD MADE REPEATED APCHS TO I12 RWY 4 INTO DUSK SINCE THIS WAS THE RWY MOST ALIGNED WITH THE WIND. BY THE TIME OF MY DEP; THE WINDS HAD BECOME CALM WITH AN ALMOST FULL MOON SHINING VERY BRIGHTLY. DURING THE RUN-UP; I TRIED TO FIND THE CAUSE OF A VERY HIGH PITCHED WHINE COMING THROUGH THE HEADPHONES AND COCKPIT SPEAKER. UNSUCCESSFUL; I DETERMINED THAT ALL SYS WERE FUNCTIONING NORMALLY; AND WHILE THE NOISE WAS DISTRACTING; IT WAS NOT AN ITEM DIRECTLY AFFECTING THE AIRWORTHINESS OF THE ACFT. AFTER CHKING FOR TFC; I DEPARTED. WHILE THE PAVEMENT OUTLINE COULD CLRLY BE SEEN IN THE BRIGHT MOONLIGHT AND THE LNDG LIGHT ADDED ADDITIONAL ILLUMINATION; SOMETHING JUST DIDN'T SEEM QUITE RIGHT. IT WAS NOT UNTIL AIRBORNE THAT I REALIZED I HAD MADE A NIGHT DEP FROM AN UNLIGHTED RWY. I BELIEVE THE CONTRIBUTING FACTORS WERE FATIGUE; IMPROPER NOURISHMENT; UNFAMILIARITY WITH THE ARPT; THE RECENCY OF HAVING JUST COMPLETED APPROX 7 OPS TO I12 RWY 4 AND THE DISTR OF THE WHINING NOISE. IN THE FUTURE; I WILL SCHEDULE MORE CONSERVATIVELY AND SAFELY TO BAL THE NEEDS OF MY STUDENTS WITH MY OWN NEEDED FOOD AND REST.