Problem with 1 block wide clock

I'm building a ferris wheel that lights up from the center outwards every 20 seconds, so I used the vertical EthosLab hopper clock. The problem is that, one of the redstone dust lights up the redstone lamps (red blocks for reference) everytime. How do I make the clock light up the center (green block for reference) without it lighting up the redstonelamps while still maintaining such a small size