It's me, Petar. There are some things I didnot tell you in my previous blog. I am interested in christmas lights☺. I love to fix christmas light chains that do not work. I was born in Bulgaria. I speak Bulgarian. I fix christmas light chains like this: first, I check the fuses. If they are blown, I change them. If they still do not work, I hold every light bulb up to the light. If its filament is broken, I change it. I change every bad light bulb until it works. Before I start, I change every broken light bulb, and put together every cut/broken wire.