https://alexnld.com/product/rd21f-delay-relay-module-power-for-delay-off-fan-module-ac-100v-220v-time-0-2s-300min-adjustable-delay/?hilite="3pcs QF1022-A-100S 220V AC Power-on Delay 0-100S Adjuatable Timer Switch Automatic Disconnect Relay Module Dry Contact Output"