May one use the light of the Hanukkah candles?
Question: May one read a book, work or do some other activity by the light of the Hanukkah candles?
Answer:
No.
The Ben Ish Chai rules that it is forbidden to use the light of the Hanukkah candles while the mitzvah is being fulfilled, even for a holy purpose, such as learning Torah by their light.
The prohibition also applies to everyday uses.
What about the shamash?
According to the halachah he cites, one may use the light of the shamash, because it is not one of the mitzvah candles.
However, he notes that some are stringent even about using the light of the shamash.
The Ben Ish Chai adds that according to Kabbalah one should not benefit from the light of the mitzvah candles, because their light has a high spiritual meaning.
How long does the prohibition last?
According to the Ben Ish Chai, this special prohibition applies for the duration of the mitzvah of lighting.
The message: the Hanukkah candles are meant to recall and publicize the miracle, not to serve as ordinary lighting.