If you are so inclined, adding two diodes and a resistor 270 ohm?, will drop the voltage thru the running light power, then brighter with brake light power. May show up at nightime better, was considering, but in daylight the lights are not that bright. I left mine alone so far. (big bikes) Would highly sugest making adapter cables for the tail lights with hitachi connectors from E/c. Mine are spliced on as per instructions, but wish I made the connector adapters. Hate to effect OEM stock items. Have been working well, but take caution when installing. The corner interlocking tabs had to be filed down on mine, or break if installed for sure. The filing is on the hidden tab, so nothing shows. Only problem I had with them. It is plastic and files fast and easy, could probably use a nail file. Take care.