Man! It's hard to change a fluorescent light! I mean the full set of it, not just the bulb. The main power has to be cut off. Take down the faulty one, & replacing the new one is a tricking part. Screwing the case to the roof was hard. That took me the longest time & it's darn tiring. My arms almost kill me. Trying to figure which wires goes to which socket is another problem. I got it right based on instinct.
Finally! It's time to test the new set. Switch back on the main power source & walllllaaaa!!! What a great satisfaction! All the hard work paid off.