OSRAM Decostar 51S MR16 GU5.3 12V 20W Halogen Light Bulb 36°
OSRAM Decostar 51S MR16 GU5.3 12V 20W Halogen Light Bulb 36° is backordered and will ship as soon as it is back in stock.
Pickup available at Double Bay Hardware
Usually ready in 1 hour
Light Bulb Fittings
Light Bulb Fittings
The light bulb fitting is the part of the bulb that connects it to the socket of a light fixture.
Colour Temperature
Colour Temperature
Colour temperature is measured in Kelvin (K) – the lower the number, the warmer the white light appears, while a higher Kelvin will appear cooler. Colour temperature generally ranges from 2700-3300K (warm) to 3300-5300 (cool) – and 6500K is daylight.
Equivalent Wattages Between Different Light Bulbs
Equivalent Wattages Between Different Light Bulbs
As long as the technology developed, a LED light bulb can only use 8 watt power but light up similar brightness when a incandescent light bulb uses 60 watt power. There is equivalent wattage between different light bulbs. To stop making confuse, you need to know what wattage equivalent to each other. See the table attached as below.
⚠️ Important: This is a 12V low voltage bulb and requires a compatible 12V transformer or power supply. It will not work with standard 240V mains voltage.
The OSRAM Decostar 51S Standard MR16 halogen reflector bulb delivers 275lm of 3000K warm white light with a 36° beam angle for directional accent and display lighting. This 20W lamp has a GU5.3 bi-pin fitting, cool-beam reflector and UV filter.
Measuring 51mm in diameter and 45mm long, this dimmable bulb has a 2,000-hour rated average life and supports universal operating position. Use a 12V supply rated for halogen lamps. For dimming, observe the transformer and dimmer's minimum and maximum total loads, counting each connected 20W lamp. Follow the complete fitting's reflector, heat, ventilation and clearance requirements. Switch off power and allow the bulb to cool before replacement.
Key Features
- OSRAM Decostar 51S Standard MR16 halogen reflector bulb
- GU5.3 bi-pin fitting
- 12V 20W rating
- 36° beam angle
- 275lm light output
- 3000K warm white light
- Dimmable
- Cool-beam reflector and UV filter
- Universal operating position
- 2,000-hour rated average life
Specifications
- Brand: OSRAM
- Range: Decostar 51S Standard
- Type: Halogen Light Bulb
- Shape: MR16
- Fitting: GU5.3 Bi-pin
- Voltage: 12V
- Wattage: 20W
- Beam Angle: 36°
- Lumen Output: 275lm
- Colour Temperature: 3000K Warm White
- Dimmable: Yes
- Operating Position: Universal
- Rated Average Life: 2,000 hours
- Diameter: 51mm
- Overall Length: 45mm
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Light Bulb Shape
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Light Bulb Type
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Fitting/Base
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Wattage
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Voltage
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Colour Temperature
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Lumen Output
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Beam Angle
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Rated Average Life
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Dimmable
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Product Diameter/Thickness
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Product Length
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SDS or PDSNone
We are more than happy to assist it for you.
You could:
1. Contact us at 02 9327 5603 or admin@doublebayhardware.com.au
Shipping Information:
- Orders are dispatched from our Sydney warehouse, same business days before 10AM.
- Standard delivery across Australia typically takes 2–8 business days depending on your location. Overseas deliveries generally take 3–10 business days.
- You can estimate postage by adding products to your cart and entering your postcode. The estimated delivery time will be displayed at checkout once you’ve entered your shipping details.
Click & Collect:
- Free Click & Collect is available from our Double Bay store. Usually is ready in 1 hour. You will receive an email notification when your order is ready for collection.
Returns Policy:
1. If you change your mind, most unused and unopened items can be returned within 30 days of purchase.
To be eligible for a return:
- Item must be unused and in its original packaging.
- Proof of purchase is required.
- Special order, clearance, hazardous and certain electrical products may not be eligible for return.
2. If an item arrives damaged or faulty, please contact our customer service team as soon as possible so we can arrange a replacement, repair or refund in accordance with Australian Consumer Law.
For full details, please visit our Shipping Policy and Returns Policy pages.
Payment & Security
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Frequently Asked Questions
Can this 20W Decostar bulb be dimmed?
Can this 20W Decostar bulb be dimmed?
Can I connect this MR16 bulb directly to 240V?
Can I connect this MR16 bulb directly to 240V?
What light does this bulb produce?
What light does this bulb produce?
