Great upgrade for old fluorescent lights. When changing from T12 to T8, the energy saving is 31%. This seller strives to please. However, when I mistakenly ordered more parts than I needed through my fault, changed the order and ended up not needing everything delivered, he stated that he would immediately refund the difference. Parts came earlier than expected. They were exactly what I needed. After upgrading those old 4ft fluorescents with these new ballasts (and T8 bulbs (instead of T12)) I get more light at a 31% reduction in wattage. What more can you ask for? Good price? Yes it was a very good price.
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