How is the QuartzEndpoint's LoadBalancer work?

Hi there,

In the QuartzEndpoint.java code, it has a built-in LoadBalancer member to
store each new QuartzConsumer created. Can someone show me how this is used
in practice? How is this different than using the Camel configurable
loadbalance() as stated in http://camel.apache.org/load-balancer.html?

Thanks,
Zemian Deng