12V halogen reflector light bulbs GU5.3 GU4

Osram Decostar 51 ALU 20W 41861 Wfl

428819 | Manufacturer: Osram | EAN: 4050300428819 | MPN: 41861-WFL

They produce instant 100% light, provide high-quality light thanks to their excellent color rendering and are perfect at delivering brilliant accent light. Lamps are also dimmable and always create the right mood.


2,46 €tax excl.

Price for 1 piece, excluding shipping costs!
Condition: New product
Factory Box - pieces (pcs): 20

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More info


Nominal wattage 20W
Nominal voltage 12V
Rated wattage 20W
Power factor λ 1
Energy consumption 22 kWh/1000h

Nominal useful luminous flux 90° 205 lm
Luminous intensity 510 cd
Beam angle 36°
Color temperature 2800K
Light color as per EN 12464-1 Warm White
Color rendering index Ra 100
Starting time 0s
Warm-up time (60%) 0s
Lumen main.fact.at end of nom.life time 0.75
Rated useful luminous flux 90° 205 lm

Diameter 51 mm
Length 46 mm
Overall length 46 mm
Outer bulb T9
Maximum diameter 51 mm

Lamp mercury content 0 mg
Mercury-free Yes

Nominal lamp life time 2000h
Rated lamp life time 2000h
Number of switching cycles 50000

Base (standard designation) GU5.3

Burning position Any
Dimmable Yes

Energy efficiency class B

The “classic” dichroic reflector lamp is patently unsuitable in a recessed ceiling luminaire because 2/3 of the heat it radiates is directed backwards. High temperatures in the luminaire can jeopardize the reliability of the entire lighting system. The solution is the DECOSTAR 51 ALU from OSRAM. Its reflector has an aluminium coating so almost no heat at all is emitted at the back. Low-pressure technology also means the lamp can be operated without a shield. Heat can therefore escape forwards with no restrictions at all.

Product benefits
-Brilliant accent light
-No light can escape at the back of the reflector
-100% constant quality of light throughout the life of the lamp
-Approved for use in open luminaires (to IEC 60598-1)
-UV filter
-Aluminum-coated reflector without a shield reduces thermal load in fixture
-Reduced thermal load: ~60% compared with aluminum-coated reflectors with shield

Areas of application
-General illumination
-Shops
-Restaurants, hotels and similar prestigious applications
-Offices, public buildings

Data sheet

Data sheet: 12V halogen reflector light bulbs GU5.3 GU4 Decostar 51 ALU 20W 41861 Wfl

DimmableYes
Energy Efficiency ClassB
Base/SockelGU5
Voltage - Volt (V)12
Wattage - Watt (W)20
Luminous flux - Lumen (lm)205
Luminous Efficacy Lamp - (lm / W)10
Light color temperature - Kelvin (K)2800
Color rendering index - CRI100
Beam angle - degrees (°)36
Luminous intensity - Candela (cd)510
Energy consumption - (kWh / 1000h)20
Switching Cycle50000
Lifetime - hours (h)2000
Factory Box - pieces (pcs)20
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Download: 12V halogen reflector light bulbs GU5.3 GU4, Decostar 51 ALU 20W 41861 Wfl

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