Confused on new Siccee uvc units

[Lb71]

They have come out with 3 new uv-c units.
According to there specs the top unit only needs 13
Watts to power 150 plus gallon systems. Specs for other manufactures want 45 watts to do the same.
How come such a discrepancy?

Larry

 

[Reefing Madness]

 

[Trillaman954]

They have come out with 3 new uv-c units.
According to there specs the top unit only needs 13
Watts to power 150 plus gallon systems. Specs for other manufactures want 45 watts to do the same.
How come such a discrepancy?

Larry

Just bought this, has it been working for u?