Product Overview

Satco S12374 — 5.5W LED MR16 Glass Floodlight, 4000K, GU10 Base, 90 CRI, Dimmable, 36°
The Satco S12374 is a 5.5-watt LED MR16 glass lamp from Satco’s LED MR16 Glass series, designed as a direct replacement for a 50W halogen MR16 lamp on a GU10 twist-lock base. With a clear glass body, 4000K color temperature (Cool White), CRI 90+, 500 lumens, a 36° flood beam, and a 25,000-hour rated life, this lamp is cULus Listed, damp location rated, and approved for use in enclosed fixtures. Dimmable (phase-cut, down to 20%) — check transformer/driver compatibility before installing. California Title 20 compliant. Sold 12 per inner pack, 48 per case. Verify base type and dimmer compatibility before ordering.
| Wattage 5.5W Replaces 50W | Lumens 500 lm 90 LPW | Color Temp 4000K Cool White, CRI 90+ | Beam 36° Flood GU10 Base | Rated Life 25,000 hrs 5-Year Warranty |
Technical Specifications
| Brand | Satco — LED MR16 Glass Series |
| Item Number | S12374 |
| Bulb Shape | MR16 |
| Bulb Glass Type | Glass |
| Lens Material | Polycarbonate (PC) |
| Finish | Clear |
| Base Type | GU10 (Bi-Pin, twist-lock) |
| Style | Contemporary |
| Input Voltage | 120V |
| Wattage | 5.5W |
| Halogen Equivalent | 50W |
| Current Draw | 0.046A |
| Operating Frequency | 60Hz |
| Initial Lumens | 500 lm |
| Efficacy | 90 LPW |
| Color Temperature | 4000K (Cool White) |
| CRI | 90+ |
| Beam Angle | 36° (Flood) |
| Power Factor | 0.7 |
| Total Harmonic Distortion | 50% |
| Surge Protection | Built-in, 0.5kV |
| Dimmable | Yes — phase-cut, dims down to 20%. Check transformer/driver manufacturer for dimmer compatibility. |
| Rated Life | 25,000 hours |
| Operating Temperature | -25°C to +45°C (-13°F to +113°F) |
| Maximum Overall Length (MOL) | 2.05" |
| Maximum Outer Diameter (MOD) | 1.97" |
| Weight | 0.13 lb |
| Fixture Rating | Enclosed Fixture Rated |
| Location Rating | Damp |
| IP Rating | IP20 |
| Safety Listing | cULus Listed |
| FCC Compliant | Yes |
| RoHS Compliant | Yes |
| DLC Approved | No |
| California Title 20 | Yes — lawful for sale in California |
| California Title 24 / JA8 | No |
| Inner Pack Quantity | 12 |
| Case Quantity | 48 |
| UPC | 045923123740 |
| Warranty | 5-year limited warranty |
Product Overview
The Satco S12374 is a 5.5W LED MR16 lamp with a glass body and polycarbonate lens, designed to deliver light quality and performance similar to a traditional halogen MR16 while using a fraction of the energy. It produces 500 lumens at 4000K with a CRI of 90+ for accurate, true-to-life color rendering, and a 36° flood beam for broad, even coverage.
This lamp is phase-cut dimmable down to 20% and is rated for damp locations and enclosed fixtures. It runs on standard 120V line voltage via a GU10 twist-lock base — no separate low-voltage transformer is required, unlike 12V GU5.3 MR16 lamps in the same family. It is cULus Listed and California Title 20 compliant.
Compatible Applications
- Downlighting
- Cabinet lighting
- Accent lighting
- Track lighting
Before Ordering — Verify
- Base Type: This is a 120V GU10 twist-lock base — not interchangeable with the 12V GU5.3 pin-base version of this same lamp family.
- Dimmer Compatibility: Phase-cut dimmable down to 20%, but not compatible with all dimmers — check satco.com or the dimmer manufacturer for compatibility before large orders.
- Color Temperature: Confirm 4000K is correct — this GU10 family also includes: S12371 (2700K), S12372 (3000K), S12373 (3500K, not in this batch), S12374 (4000K), S12375 (5000K).
- Voltage: Confirm the application is 120V.
- Location Rating: Damp rated, IP20 — not for direct wet/outdoor exposure.
Safety and Handling Guidelines
- Disconnect power before installing or replacing this lamp.
- Dimmer Use: Use only with a tested-compatible phase-cut dimmer; incompatible dimmers may cause flicker or shortened life.
- Glass Construction: Handle carefully — this lamp has a glass body, unlike plastic-bodied LED MR16 alternatives.
- Environment: Suitable for damp locations only — do not install where it will be directly exposed to water.
- Code Compliance: Install and operate in accordance with the National Electrical Code (NEC) and all applicable local codes.
Compliance
- cULus Listed, FCC Part 15 compliant.
- Meets ICES-005 Issue 5 Class B requirements for residential applications.
- Damp location rated, IP20, approved for enclosed fixtures.
- California Title 20 compliant — lawful for sale in California. Not Title 24/JA8 certified.
- Some products in this family may be subject to California Proposition 65 warning requirements — refer to product packaging for details.
- Not DLC approved.
- Mercury-free, lead-free LED lamp — no mercury-related state shipping restrictions apply.
- 5-year limited warranty.
Ordering Information
- Brand: Satco — LED MR16 Glass Series
- Item Number: S12374
- UPC: 045923123740
- Wattage / CCT: 5.5W / 4000K
- Base: GU10 (MR16 shape)
- Equivalent: 50W Halogen
- Packaging: 12 per inner pack, 48 per case.
- Case quantities and bulk pricing: Contact ADL Supply for volume orders.
For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.