Bluonics 55 W UV systems – identical electrical spec and design. iSpring UVF55/UVT55FS – uses UL‑recognized 55 W 110 V ballast with flow sensor Ronaqua/Bluonics 12 GPM 55 W – spec’d for 0.75 A, 100–140 V electronic ballast.
My old UV transformer lasted 8 years. Must have shorted it some way. I’ll take better care of this one maybe. Saved me 25% over other online suppliers and free shipping. I am very pleased.