Crontab command

Hi, currently i'm using hyperion alpha 8 with signal detection without any issue when turn off the box.
After i moved to HyperHDR, i can't find the best config for the auto turn off led when sleep the box.

So i try to use crontab to set timing on my LED turn ON & OFF but it doesn't work.
Need someone to check my command.

crontab -e


0 19 * * * hyperion-remote --sourceSelect 240


0 23 * * * hyperion-remote --sourceSelect 254