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Dimmable 12V

OSRAM Bi-Pin G4 12V 20W HALOSTAR Halogen Light Bulb Clear

OSRAM  |  SKU: 64425
Regular price $7.99
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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

320lm · 3000K

Warm white halogen light with Ra 100 colour rendering and immediate full brightness.

12V 20W G4

Clear bi-pin capsule with a 2,000-hour rated life and compatible dimming.

⚠️ 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 OSRAM HALOSTAR clear halogen capsule produces 320 lumens of 3000K warm white light with a colour rendering index of Ra 100. It has a G4 bi-pin base, draws 20W and reaches full light immediately.

The lamp has a 2,000-hour rated average life and supports dimming with compatible controls and a dimmable 12V supply. Match the G4 socket, 20W lamp rating and 8mm diameter × 30mm overall length to the fitting. Follow its ventilation and heat-clearance requirements, switch off the power and let the lamp cool before handling with a clean cloth or gloves.

 

Key Features

  • Clear HALOSTAR halogen capsule.
  • G4 bi-pin base with 4mm pin spacing.
  • 12V operation and actual 20W power consumption.
  • 320-lumen output and 3000K warm white light.
  • Colour rendering index: Ra 100.
  • Immediate full light output.
  • 360° light distribution.
  • Dimmable with compatible low-voltage halogen controls.
  • 2,000-hour rated average life.

 

Specifications

  • Brand: OSRAM
  • Series: HALOSTAR
  • Technology: Halogen
  • Shape: Bi-pin capsule
  • Base: G4
  • Voltage: 12V
  • Wattage: 20W
  • Light output: 320lm
  • Colour temperature: 3000K Warm White
  • CRI: Ra 100
  • Beam angle: 360°
  • Finish: Clear
  • Rated average life: 2,000 hours
  • Diameter: 8mm
  • Overall length: 30mm
  • Dimmable: Yes

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Frequently Asked Questions

Can this 20W G4 halogen bulb be dimmed?

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

Can this G4 capsule connect directly to 240V mains?

No. This is a 12V lamp requiring a compatible 12V supply and a G4 fitting rated for a 20W halogen capsule. Match its 8mm diameter and 30mm overall length to the fitting and follow its heat-clearance and ventilation requirements.

Is this an LED capsule, and what colour light does it produce?

This is a clear halogen capsule, not an LED. It produces 320 lumens of 3000K warm white light with Ra 100 colour rendering and reaches full light immediately.