BN-LINK SU101C 7-Day In-Wall Digital Timer Switch, 18 Programs

At 12.5 x 8.2 x 6.2 cm, the BN-LINK SU101C is an in-wall digital timer switch for scheduled control of lights, fans and other compatible loads. It supports single-pole and 3-way setups, so it can suit a range of household switch locations, from an entryway to a hallway controlled from two points.

Set up to 18 on/off programs across a seven-day schedule, with intervals as short as one minute. Choose individual days or preset day combinations to match the routine you want to automate.

Practical tips

Plan the on and off times around the way you use each space. For example, schedule an entryway light for the hours you usually arrive home, or set a fan to run during selected parts of the day. The timer offers AUTO mode for following programmed times and MANUAL mode for direct control, switching modes lets you use the connected load without changing the schedule.

For times when you’re away, Random mode can vary scheduled on and off times by 0–30 minutes to give lighting a less predictable pattern. Daylight Saving Time functionality helps keep the clock aligned when the time changes. Installation requires a neutral wire, and the switch is designed for single-pole or 3-way wiring. Match the setup to the existing circuit before installation.

Benefits

This timer brings recurring switching into the wall control, rather than relying on a separate plug-in timer or remembering to operate a switch each day. That can be useful for fixed lights in a porch, garage, hallway or patio, and for fans that benefit from a regular schedule. With up to 18 on/off programs, you can create multiple switching periods instead of limiting the routine to one daily start and stop.

A built-in rechargeable battery retains settings during a power outage. The included face plate completes the wall-switch setup, while push-button controls provide access to programming and manual operation. Buyers commonly describe the programming and day-to-day operation as straightforward, feedback is more mixed on the instructions and wiring, so the existing circuit and the installation steps deserve careful attention.

Key points

The switch is rated at 15 A and 1875 W, at 125 V AC and 60 Hz. Its plastic construction and push-button control suit an in-wall timer format, while the 7-day schedule supports routines that differ between weekdays and weekends. It is compatible with lights, fans and motors, and its 3-way capability allows the same light to be controlled from two locations in an appropriate circuit. ETL listing and the stated UL standards are part of its product specifications.

Compared with a basic switch, the SU101C adds automatic schedules and a random mode. Compared with a plug-in timer, it provides timed control at the wall for a connected circuit. Choose the approach that best matches where the load is wired and how you want to control it.

Buying verdict

The BN-LINK SU101C is a practical choice for household lighting or fan circuits that would benefit from repeatable weekly schedules, manual override and an away mode. Its 18 programs, single-pole and 3-way compatibility, and daylight-saving adjustment make it especially useful for managing fixed lights across a changing routine. For installation, confirm that the circuit has a neutral wire and suits the intended single-pole or 3-way arrangement.