Halogen bulb Osram HALOSTAR STARLITE 20 W 12.0 V G4 Warm white

The Osram HALOSTAR STARLITE 20 W 12.0 V G4 halogen bulb delivers warm white illumination with accurate colour rendering. Designed in a compact T10 form factor with a G4 bi-pin base, this 20 W, 12 V lamp provides natural-looking light suitable for accent, display and decorative fixtures. The bulb produces light at a colour temperature of 2800 K and offers a high Colour Rendering Index (CRI) of 100 for faithful colour reproduction.

Advantages

This halogen bulb is dimmable and produces consistent warm white light with very high colour fidelity, making it appropriate where accurate colour perception is important. Its compact size and G4 base allow easy installation in small luminaires, under-cabinet fittings, display cases and specialty fixtures. The T10 form factor provides focused illumination for accent lighting while maintaining a neutral and natural appearance.

Suitable for

• Accent and display lighting in retail and exhibition settings
• Under-cabinet and furniture lighting where compact G4 lamps are required
• Decorative fixtures, chandeliers and pendant lamps designed for low-voltage halogen bulbs
• Task lighting that benefits from warm white, high-CRI light

Key specifications

• Rated power: 20 W
• Operating voltage: 12 V
• Colour temperature: 2800 K (warm white)
• Colour Rendering Index (CRI): 100
• Base type: G4 bi-pin
• Form factor: T10
• Dimmable: yes

How to use

Install the bulb into a compatible G4 socket of a low-voltage luminaire. Ensure the fixture is rated for 12 V halogen lamps and that the matching transformer or driver provides correct voltage and current. Turn power off before replacing the bulb to avoid electric shock and allow the lamp to cool if it has been in use, as halogen bulbs operate at high temperatures. For dimming, use a dimmer or transformer compatible with low-voltage halogen loads to maintain smooth dimming performance.

Recommendations

Use in enclosed fixtures only if the luminaire manufacturer specifies compatibility with halogen lamps. Avoid direct skin contact with the glass; handle with a clean cloth or gloves to prevent oils from shortening lamp life. Verify transformer compatibility and minimum load requirements when grouping multiple bulbs on a single low-voltage circuit.