20W G4 bi-pin halogen capsule lamp with a 24V operating voltage and warm white 3000K illumination. Delivering approximately 280 lumens, this dimmable Osram lamp is ideal for specialist equipment, display lighting, decorative fittings, and precision low-voltage applications.
What it is
The Osram G4 20W 24V Halogen Capsule Lamp is a premium low-voltage halogen lamp designed to deliver bright, natural illumination with outstanding colour accuracy. Featuring a clear glass capsule, G4 bi-pin base, and 24V operating voltage, this compact lamp provides dependable performance in decorative, commercial, industrial, and specialist lighting applications.
Producing approximately 280 lumens of warm 3000K illumination, it reaches full brightness instantly and offers smooth dimming when used with compatible control equipment. Its compact capsule design makes it ideal for installations where space is limited but high-quality illumination is essential.
Use Cases / Applications
Ideal for a wide range of residential, commercial, industrial, and specialist lighting applications, including:
| Application |
Suitable? |
Notes |
| Display Cabinets & Showcases |
✅ Yes |
Excellent colour rendering enhances merchandise and exhibits. |
| Cabinet & Furniture Lighting |
✅ Yes |
Compact design fits confined spaces with ease. |
| Decorative Lighting |
✅ Yes |
Perfect for feature lighting and architectural accents. |
| Accent Lighting |
✅ Yes |
Provides focused, warm illumination for highlighting objects. |
| Hospitality Lighting |
✅ Yes |
Popular in hotels, restaurants, and luxury interiors. |
| Landscape Lighting |
✅ Yes |
Suitable for compatible 12V outdoor lighting systems. |
| Marine & Caravan Systems |
✅ Yes |
Ideal for compatible 12V low-voltage installations. |
| Photography Equipment |
⚠️ Equipment Dependent |
Suitable only where a 12V G4 20W lamp is specified. |
| Medical Equipment |
⚠️ Equipment Dependent |
Compatible only with equipment designed for this exact specification. |
| Projectors & Optical Equipment |
⚠️ Equipment Dependent |
Use only where the equipment manufacturer specifies a G4 20W 12V capsule. |
Key Benefits
- Delivers approximately 280 lumens of warm white illumination
- Warm 3000K light provides natural, comfortable lighting
- Excellent colour rendering for accurate colour reproduction
- Fully dimmable for adjustable brightness control
- Compact G4 capsule design for space-saving installations
- Instant full brightness with no warm-up time
- Precision-engineered by Osram for reliable performance
- Suitable for decorative, commercial, industrial, and specialist lighting applications
Halogen lamps are renowned for their exceptional colour rendering and stable light output, making them an excellent choice for applications where visual clarity and colour accuracy are essential.
Safety Compliance
- Rated for 24V low-voltage operation
- Fully dimmable with compatible transformers and dimmers
- Suitable for compatible G4 lamp holders
- Install according to equipment and luminaire manufacturer recommendations
- Always isolate power before replacing the lamp
Brand Reputation
Osram is a globally recognised leader in lighting technology, trusted by electricians, contractors, lighting designers, and equipment manufacturers. With a reputation for precision engineering and consistent quality, Osram products deliver dependable performance across residential, commercial, industrial, and specialist applications.
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