who knows about my ballast?

[jro]

i have a ballast with no info except the following
SM, Ink.
mukilteo Wa.
(box marked) HPS
serial#9803
date7/22/00
any idea?
thanks

[charlie]

A pic might help.

[Ninong]

Hi jro,

i have a ballast with no info except the following
SM, Ink.

Hmmm? Not sure, might have something to do with testing.

mukilteo Wa.

Mulkilteo, Washington

(box marked) HPS

High pressure sodium. We don't use those for reef aquarums.

serial#9803
date7/22/00

Serial number and date of manufacture.