If you have quoted Watt Seconds, you then need to know the efficiency in terms of the number of Lumens per Watt Second the unit produces. You can then calculate the Lumenseconds value to compare the units.
Your cousin considered 1/4 blood relation to you marries and the child is considered 1/8 blood relation to you. A sibling is full blood, niece/nephew is 1/2, cousin 1/4, cousins baby 1/8 and so on. If it is your first cousin's wife's baby then it is your first cousin once removed.
When tracing your family history, however, it can be important to understand the various types of cousin relationships. What is a Second Cousin? The degree of cousin relationship is based on the most recent direct ancestor that two people have in common. First cousins are the people in your family who have two of the same grandparents as you. Second cousins have the same great-grandparents as you, but not the same grandparents.