Can I use less Xenon lights than kit comes with?

I bought a 5-light Xenon puck kit (Utilitech) for under cabinet install. The kit comes with a transformer and dimmer. A cable with 5 plugs that attach to each puck comes from the transformer. For the space we're putting these, 4 lights work out perfect, 5 is too much. I can disconnect individual lights but I loose some dimming. Does anyone know if it's safe to run the kit this way? The transformer output is 60watt, each light is 10watt.Can I use less Xenon lights than kit comes with?
There should be no reason that using 40 watts of a 60 watt transformer would cause any problems other than the dimming issue.



It would not be any different than if you had all five connected and 1 bulb burned out.