The LEDVANCE OSRAM DECOSTAR 51S 44865 WFL 35W/GU5.3/12V is a halogen reflector lamp with a 51 mm dichroic reflector. The dichroic coating diverts a large portion of infrared heat away from the light beam — up to 66% less heat in the beam compared to a standard reflector lamp — protecting heat-sensitive displays, artworks, and food.

The lamp is approved for use in open luminaires (IEC 60598-1), features an integrated UV filter, and is dimmable to 100%. Mercury-free and rated for 4,000 hours average service life, it suits entrance lighting, kitchen spotlights, mirror lighting, and object display applications.

Key Features

• 35 W halogen, GU5.3 base, 12 V operation
• 51 mm diameter dichroic reflector — WFL (wide flood) beam distribution
• Dichroic coating reduces heat in the light beam by up to 66%
• Integrated UV filter to protect sensitive materials
• 100% dimmable with a compatible 12 V halogen dimmer
• Approved for open luminaires per IEC 60598-1

Product Benefits

• The 66% heat reduction in the beam makes the DECOSTAR 51S safe for use close to heat-sensitive objects — food, flowers, fabrics, and artworks
• The UV filter blocks ultraviolet radiation that causes yellowing and fading of displayed materials
• Ra 100 colour rendering index means colours appear exactly as under natural daylight, important for product display and kitchen tasks
• Full 100% dimmer compatibility allows the lamp to serve both task lighting and low-level mood lighting from a single fitting
• 4,000 hour average lifespan reduces replacement frequency in hard-to-reach accent fixtures

Technical Specifications

• Model: DECOSTAR 51S 44865 WFL
• Rated Power: 35 W
• Base: GU5.3
• Rated Voltage: 12 V
• Reflector Diameter: 51 mm
• Beam Type: WFL (Wide Flood)
• Colour Rendering Index: Ra 100
• Heat Reduction in Beam: up to 66% (dichroic reflector)
• UV Filter: Yes
• Dimmable: Yes, 100%
• Average Lifespan: 4,000 hours
• Mercury Content: None
• Approved for Open Luminaires: Yes (IEC 60598-1)

Why You'll Love It

• The standard GU5.3 base and 51 mm format mean it drops directly into the vast majority of existing MR16 halogen downlight and accent track fittings
• The Deco cover gives the front of the lamp a finished appearance, eliminating the need for a separate lens or cover glass in many fittings
• 4,000 hours service life versus the typical 2,000 hours of a standard halogen means significantly fewer lamp changes in ceiling-mounted or recessed fixtures
• The wide flood beam angle distributes light evenly over a broad area — well suited to kitchen counters, display shelves, and mirror lighting