I have a set of Unilights and will be using a 3 cell 9.9V pack for power. The lights come with a resistor installed for 8V and includes another resistor for 12V. With the battery I'm using I assume I need to install the included resistor but the instructions aren't clear on if the second resistor is installed in addition to the already installed resistor or if the additional resistor replaces the already installed resistor. Can someone let me know which is correct?

Also, if both resistors are to be used, does the second resistor need to be installed near the first one or can it be installed anywhere along the length of wire?

Thanks,
Kirk