| Specification Attribute | Model: 66503S | Model: 66503GB |
| Brand | Anchor | Anchor |
| Series / Range | Roma Urban | Roma Urban |
| Product Code / Item Code | 66503S | 66503GB |
| Product Type | Step Fan Regulator | Step Fan Regulator |
| Generic Type | Fan Regulators | Fan Regulators |
| Control Mechanism | Stepped Rotary Knob (Hum-Free) | Stepped Rotary Knob (Hum-Free) |
| Rated Power | 100 W | 100 W |
| Operating Voltage & Frequency | 240 V AC, 50 Hz | 240 V AC, 50 Hz |
| Number of Modules | 2 Module (2M) | 2 Module (2M) |
| Color Finish | Metallic Silver | Graphite Black |
| Material | Flame-Retardant Engineering Polymer | Flame-Retardant Engineering Polymer |
| Dimensions (L x B x H) | 24.4 x 13.2 x 6.0 cm (Packaged) | 24.4 x 13.2 x 6.0 cm (Packaged) |
| Unit Weight | 0.2 kg | 0.2 kg |
| Mounting Mechanism | Snap-In Modular Flush Mount | Snap-In Modular Flush Mount |
| Target Applications | Residences, Corporate Offices & Hotels | Luxury Apartments, Villas & Hospitality Suites |
| Best Used For | Standard & High-Sweep Ceiling Fans Up to 100W | Silent Stepped Airflow Regulation |
Quiet 100W Capacitive Speed Regulation: Employs advanced internal step-capacitors to modulate fan velocity silently without irritating motor hum or excessive heat generation.
Ergonomic 2-Module (2M) Form Factor: Features a broad, centered rotary dial that provides comfortable fingertip control while preserving symmetry on multi-gang switchboards.
Positive Step Indexing Mechanism: Engineered with firm mechanical detents for crisp speed transitions, eliminating arcing and preventing accidental drift between settings.
Dual Architectural Finish Profiles: Available in Metallic Silver (66503S) for bright modern themes and Graphite Black (66503GB) for minimalist, glare-free dark interiors.
Flame-Retardant Polymer Enclosure: Molded from self-extinguishing, impact-resistant thermoplastic to ensure long-term thermal endurance across residential and hospitality projects in Nepal.