The LEDVANCE OSRAM DECOSTAR 51S 44860 WFL 20W/GU5.3/12V is a low-voltage halogen reflector lamp with a 51 mm diameter dichroic reflector. The dichroic coating redirects the majority of infrared heat away from the light beam, reducing thermal stress on objects and materials in the lit zone.

The lamp carries a deco cover, operates at 12V with a GU5.3 base, and is approved for open-type luminaires per IEC 60598-1. It does not contain mercury and delivers a colour rendering index of Ra 100.

Key Features

• Dichroic reflector reduces heat in the light beam by up to 66%
• 51 mm reflector diameter
• Wide flood (WFL) beam distribution
• GU5.3 base at 12V operating voltage
• Deco cover for a finished appearance
• UV filter integrated
• Mercury-free
• Approved for open-type fixtures per IEC 60598-1

Product Benefits

• The dichroic reflector removes a large portion of infrared heat from the beam, protecting heat-sensitive objects such as food, artwork, and merchandise on display
• 100% brightness adjustability lets users set the exact light level needed for accent or task use
• Ra 100 colour rendering index ensures precise colour fidelity — particularly valuable for retail display and art lighting
• The deco cover gives the lamp a clean, finished look in open-fronted luminaires where the lamp face is visible
• 4,000-hour average lifespan keeps maintenance intervals reasonable for commercial and residential use

Technical Specifications

• Model: DECOSTAR 51S 44860 WFL
• Power: 20 W
• Voltage: 12 V
• Base: GU5.3
• Reflector Diameter: 51 mm
• Beam Type: Wide flood (WFL)
• Lamp Type: Halogen reflector with dichroic coating
• Heat Reduction in Beam: up to 66%
• Colour Rendering Index (Ra): 100
• Average Lifespan: 4,000 hours
• Dimming: 100% adjustable brightness
• Compliance: IEC 60598-1
• Mercury Content: None

Why You'll Love It

• The dichroic heat reduction is especially useful over fresh food counters, display cabinets, and artworks where beam heat would cause damage or discomfort
• The wide flood beam distributes light evenly across a broader area compared to narrow-spot equivalents — practical for kitchen worktops and countertop displays
• The GU5.3 base is a widely used standard for low-voltage halogen reflectors, making this a straightforward replacement in existing track or recessed fixtures
• Mercury-free construction simplifies disposal and meets environmental regulations