Product Overview
Halco ProLED 20544 MR16FL5-927-GU10-LED3-D-T20 – 4.5W MR16 LED | 350 Lumens | 2700K | Flood 40° | GU10 | T20
The Halco ProLED 20544 MR16FL5-927-GU10-LED3-D-T20 is a 4.5W MR16 LED lamp with a GU10 base, producing 350 lumens at 2700K (warm white) with 90+ CRI and a 40° flood beam. It is rated by Halco as a 35W halogen equivalent, operates on 120V, and is Triac dimmable, ETL listed for damp locations, and rated for L70 >25,000 hours of useful life.
Wattage 4.5W 35W Halogen Equivalent | Lumens 350 lm 78 LPW | Color Temp 2700K Warm White | Beam Spread 40° Flood / GU10 Base | CRI 90+ 25,000 Hour L70 Life |
Technical Specifications
| Brand | Halco Lighting Technologies |
| Product Family | ProLED MR16 Lamp Series (Generation 3) |
| Product Number | 20544 |
| Product Code | MR16FL5-927-GU10-LED3-D-T20 |
| Lamp Technology | LED |
| Bulb Shape | MR16 |
| Base | GU10 twist-lock |
| Nominal Wattage | 4.5W |
| Halogen Equivalent Wattage | 35W |
| Input Voltage | 120V |
| Color Temperature | 2700K |
| Color Rendering Index | 90+ CRI |
| Luminous Flux | 350 lumens |
| Efficacy | 78 lm/W |
| Beam Spread | 40° flood |
| Power Factor | 0.7 |
| Useful Life | 25,000+ hours (L70) |
| Dimming | Triac dimmable |
| Operating Temperature | -20°C to 40°C |
| Housing Material | White polycarbonate |
| Lens | Plastic |
| Base Material | Nickel-plated copper |
| Dimensions | Ø2.00 in x 2-1/8 in |
| Weight | 0.047 lbs |
| Operating Position | Universal |
| Input Frequency | 60Hz |
| Location Rating | Damp Location Rated |
| Listings | cETLus, FCC, RoHS, IC-Rated, Title 20, Damp Location Rated |
| Warranty | 3-year limited warranty |
| UPC | 807154205448 (computed from Halco's confirmed 807154 + product number + check-digit pattern; unconfirmed pending carton verification) |
Product Overview
The ProLED MR16 Lamp Series (Generation 3) from Halco Lighting Technologies is a line of LED reflector lamps built to replace 20W, 35W, 40W, and 50W halogen MR16 lamps. This 20544 occupies the 4.5W position in that line, rated by Halco as a 35W halogen equivalent, and shares the series' 90+ CRI rating, >25,000-hour L70 useful life, white polycarbonate housing, and nickel-plated copper base with the rest of the family.
This SKU is configured for 40° flood distribution at 2700K. It runs on 120V through its GU10 base and is IC-rated, meaning it is suitable for use in insulated ceiling contact fixtures.
This lamp is on Halco's confirmed compatible dimmer list, including Leviton 6672, several Lutron models, and the Legrand RHCL-453P; as with any dimming installation, verify performance in the actual fixture and dimmer combination before a full rollout.
Compatible Applications
- Accent and display lighting in retail, museum, and gallery settings
- Hospitality, healthcare, and restaurant interiors
- Residential and commercial recessed and track fixtures using MR16 sockets
- K-12 schools and higher education facilities
- Line-voltage (120V) fixtures using a GU10 twist-lock socket, including covered outdoor applications
Before Ordering – Verify
- Confirm the fixture uses a GU10 base. GU5.3 bi-pin and GU4/MR11 sockets will not accept this lamp.
- Confirm the supply voltage is 120V. The GU5.3 lamps in this series are 12V; the GU10 lamps are 120V — they are not interchangeable on voltage.
- Confirm the beam spread: this lamp is 40° flood; the series also offers Narrow Flood (25°) and Wide Flood (60°)
- Confirm color temperature: this lamp is 2700K; other CCT options exist in this same beam/wattage tier
- Test dimmer compatibility in the actual application before a full installation, since dimming performance varies by system
Safety and Handling Guidelines
- Disconnect power to the fixture or driver/transformer before installing or replacing the lamp
- Allow any existing lamp to cool before removal, particularly when replacing halogen lamps
- Handle by the lamp body; avoid applying force to the GU10 base during insertion or removal
- Seat the base fully and squarely in the socket to avoid arcing or intermittent operation
- Confirm the fixture location is dry or damp, not wet, unless the fixture itself is sealed and rated for wet locations
- Installation should follow all applicable national and local electrical codes
Compliance
- cETLus, FCC, RoHS, IC-Rated, Title 20, Damp Location Rated
- Damp Location Rated
- IC-Rated (suitable for insulated ceiling contact fixtures)
- Title 20 compliant
- 3-year limited warranty
Ordering Information
- Halco product number: 20544
- Halco product code: MR16FL5-927-GU10-LED3-D-T20
- UPC: 807154205448 (computed, unconfirmed pending carton verification)
- Base / Voltage: GU10 / 120V
- Warranty: 3-year limited warranty
For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.
