Forgot 5. The unit works using some LED light. A. it is bright B. It is not replaceable. Meaning after 2-4 years of operation, the unit becomes a throwaway. T

Forgot 5. The unit works using some LED light. A. it is bright B. It is not replaceable. Meaning after 2-4 years of operation, the unit becomes a throwaway. This is not a good thing for a unit that costs over $700