Overview
The Satco S1978 is a professional-grade 50W halogen MR16 flood lamp rated for 120V operation. This compact reflector lamp combines reliable halogen technology with a 36-degree flood beam pattern, making it suitable for precise accent and display lighting in retail, hospitality, and landscape applications. With a 2000-hour average rated life and dimmable operation, the S1978 offers consistent color rendering and long-term performance.
Key Features
- 50W power consumption at 120V for controlled energy use
- GU5.3 (Miniature 2-Pin) base for universal fixture compatibility
- 36-degree flood beam angle for focused illumination
- 500 lumens output with 99–100 CRI for accurate color reproduction
- 2900K warm white color temperature
- Dimmable with compatible dimmer switches
- UV-blocking filter to reduce fading and heat transmission
- Clear lens finish for maximum light transmission
Technical Specifications
- Wattage: 50W
- Voltage: 120V
- Base Type: GU5.3 (Miniature 2-Pin Round)
- Bulb Shape: MR16 (2-inch diameter reflector)
- Lumens: 500 LM
- Beam Angle: 36 degrees (flood)
- Color Temperature: 2900K (warm white)
- Color Rendering Index (CRI): 99–100
- Average Rated Life: 2000 hours
- Amperage: 0.417A
- Technology: Halogen
- Dimmable: Yes
- Special Features: UV-blocking filter, universal burn position
- Compliance: RoHS compliant
Typical Applications
- Retail display case lighting and accent fixtures
- Track lighting systems in showrooms and galleries
- Landscape and outdoor accent lighting
- Food service and hospitality venue lighting
- Directional floodlighting in commercial spaces
- Museum and gallery exhibition lighting where color accuracy matters
Compatibility & Replacements
Compatible With
- Any 120V fixture rated for 50W MR16 lamps
- Standard dimmer switches (dimmable-rated fixtures)
- Track lighting systems with GU5.3 socket compatibility
- Halogen lamp receptacles with miniature 2-pin round bases
- Damp location-rated fixtures
Replaces / Drop-In Replacement For
- Satco 50MR16/FL/120V (original designation)
- Other 50W MR16 120V halogen flood lamps with GU5.3 bases
- Verify base type and wattage match before substituting in existing fixtures
Works With
- 120V AC standard household and commercial electrical systems
- Dimmer switches rated for halogen lamp loads
- GU5.3 (Miniature 2-Pin Round) socket fixtures
- Reflector lamp fixtures rated for 50W operation
