The Lutron ST-PRO-N-BI is the professional-grade dimmer in the Sunnata touch line. Its key advantage is selectable dimming phase: it ships in reverse-phase mode, ideal for most LED and ELV loads, and can be switched to forward phase for MLV transformers and lamps that perform better that way. That flexibility, combined with adjustable trim, helps eliminate flicker, buzz and dropout on difficult fixtures. Ratings are 250 W LED/CFL, 500 W incandescent, halogen or ELV, and 400 VA MLV on a single, non-ganged device, and it can also drive Hi-lume 1% 2-wire LED drivers or up to three power boosters and interfaces for larger zones. A neutral connection is required. For multi-location control add up to four ST-RD companion dimmers for five locations; standard mechanical switches are not compatible. The touch face, LED light-level bar and front-accessible service switch match the rest of the Sunnata family.
Key Features
- Forward/reverse phase selection
- Wide load compatibility
- Multi-location with ST-RD companions
- FASS and power-failure memory
- Sunnata touch styling
Ideal Applications
High-end residential and hospitality projects with mixed LED, ELV and MLV fixtures, retrofit LED jobs with flicker issues, and design-driven spaces using Sunnata satin colors.
Compatibility
Neutral required. Multi-location only with ST-RD companion dimmers (max 4); the PRO dimmer must be on the load side. Not compatible with ST-RS, ST-AS or mechanical 3-way switches. Gang derating applies.