along with a fluorescent tube...I also use an incandescent tube as well.
Fluorescents do NOT provide full light spectrum.

This is obsolete, unless your light garden is so cold that you need the extra
heat. Full-spectrum fluorescent tubes are easily available in Canada & the US.
The added efficiency and the fact that they are quite long lasting make up for
the higher price.
Iris,
Central NY, Zone 5a, Sunset Zone 40
"The trouble with people is not that they don't know but that they know so much
that ain't so."
Josh Billings (Henry Wheeler Shaw), 1818-1885