Zunzunbee joins Works with Home Assistant program

Zunzunbee announced its Slate Switch joining the Works with Home Assistant program, a move that signals startups are increasingly chasing certification alongside household names.

Slate Switch is a battery powered smart scene controller that simply snaps on top of your current switches, ideal for renters or anyone who hates rewiring walls. It is designed to cut the friction of smart homes by avoiding installation headaches and hardware swaps, letting users keep their existing wiring intact while gaining smart control.

Founder Harish Raman brings more than 18 years in lighting and connected systems, including senior engineering roles at Leviton and Philips. He says Slate Switch is meant to feel natural, reliable, and under the user’s control, aligning with a broader vision for easy, dependable automation.

The Home Assistant community’s adoption philosophy is clear in the announcement: the program prizes local control, flexibility, and deep customization, not just big brand names. That alignment matters, because Slate Switch is designed to stay under the user’s control while connecting to a local-first automation ecosystem.

Practitioner level takeaways from the rollout are telling. First, the retrofit approach, mounting over existing switches rather than replacing wiring, reduces waste and preserves what homeowners already own, a subtle but meaningful sustainability argument for retrofit devices.

Second, the emphasis on tactile, reliable control without mandatory cloud or account dependencies speaks to a broader appetite in smart homes for local-first design and user sovereignty. The core message from the founders and the WWHA partners underscores control flowing from user, not from a remote service.

Third, the timeline hints at a growing appetite among startups to participate in certification programs that historically favored established brands. The CES 2026 buzz that helped Slate Switch stand out earlier in the year is now followed by formal inclusion in WWHA, signaling a maturing ecosystem where newcomers can gain visibility without compromising on interoperability.

For readers weighing options, Slate Switch offers a compelling path for renters or owners who want smart control without swapping faceplates or pulling new wiring. It sits in the same lane as other retrofit scene controllers but differentiates itself by anchoring to a robust, local control stack rather than pushing users toward a cloud-centric model. The obvious question remains: how will battery life, tactile feedback, and cross-platform compatibility play out in real homes over months of daily use? Early signals from the WWHA pairing and CES visibility suggest hardware-for-hardware’s sake is giving way to thoughtful, user-first automation that can be tweaked and scaled within existing living spaces.

Verdict: Buy if you want a retrofit friendly entry into a local, customizable smart home and you do not want to gut your existing switches. If you need fully wired, button heavy wall plates or cloud reliant scenes, you may prefer traditional replacements or other approaches. Slate Switch represents a pragmatic middle ground that fits a real world rental or update scenario, backed by a respected automation community.