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Dimmable 12V

PHILIPS Aluminum Reflector BA15d 12V 20W Halogen Light Bulb 18°

PHILIPS  |  SKU: 666753
Regular price $159.90
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Light Bulb Fittings

The light bulb fitting is the part of the bulb that connects it to the socket of a light fixture.

Check fitting guide

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.

Check details of colour temperature

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.

Check table chart

18° Focused Beam

Aluminium reflector with 235-lumen output and 1,500cd luminous intensity.

3000K Warm White

20W halogen lamp with CRI 100 and a 4,000-hour rated average life.

⚠️ 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.

This Philips aluminium reflector halogen lamp produces a focused 18° beam with 235 lumens of 3000K warm white light. Its 1,500-candela luminous intensity and CRI 100 support focused accent and display lighting in a matching fitting.

The lamp draws 20W and uses a BA15d double-contact bayonet base. Match the supply, fitting and optical alignment to the lamp, follow the fitting's ventilation and heat-clearance requirements, and maintain the marked minimum illumination distance of 0.5m.

 

Key Features

  • Aluminium reflector with an 18° focused beam.
  • BA15d double-contact bayonet base.
  • 12V operation and actual 20W power consumption.
  • 235-lumen output and 1,500cd luminous intensity.
  • 3000K warm white light with CRI 100.
  • Dimmable with compatible controls and a dimmable 12V supply.
  • 4,000-hour rated average life.
  • 16,000 rated switching cycles.
  • Universal operating position.

 

Specifications

  • Brand: Philips
  • Technology: Halogen
  • Reflector: Aluminium
  • Base: BA15d double-contact bayonet
  • Voltage: 12V
  • Wattage: 20W
  • Colour temperature: 3000K Warm White
  • Beam angle: 18°
  • Light output: 235lm
  • Luminous intensity: 1,500cd
  • Colour rendering index: 100
  • Rated average life: 4,000 hours
  • Rated switching cycles: 16,000
  • Dimmable: Yes
  • Diameter: 38mm
  • Length: 41mm
  • Operating position: Universal
  • Minimum illumination distance: 0.5m

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Frequently Asked Questions

Can this 20W lamp be dimmed?

Yes. Use a compatible halogen dimmer and a dimmable 12V transformer or power supply. Each lamp draws 20W; check the minimum and maximum load ratings of both the supply and dimmer, especially for a single lamp.

Will this fit any bayonet socket?

No. It requires a matching BA15d double-contact bayonet fitting and compatible 12V supply rated for a 20W halogen lamp. Check the 38mm diameter, 41mm length and optical alignment. Follow the fitting's ventilation requirements and keep illuminated objects at least 0.5m away.

What is the difference between 235 lumens and 1,500 candelas?

235 lumens describes total light output. The 1,500-candela rating describes light intensity in the beam direction. This lamp concentrates its output into an 18° beam; the two measurements are not interchangeable.