Short redstone pulses

I set a Mark I up to shut off whenever the attached MFSU is full. Because of a lot of low EU workshop gear its producing short redstone pulses as ir shuts off and fills up.

Am I losing power because the off periods last less than one second and the reactor works in one second pulses, or is that power being conserved?

Just accidentally left my reactor running and it burned through half my uranium, so just in case anybody searches this, short redstone off pulses will not conserve uranium.