A LEKO is an ellipsoidal reflector spotlight (ERS) , a type of theater and stage spotlight that produces a powerful, focused beam of light . The name LEKO comes from the original manufacturer, LekoLite , but is now generally used to refer to this type of lamp.
Features of a LEKO:
✅ Ellipsoidal reflector – Provides a strong and focused beam of light.
✅ Sharp or soft edge – Adjustable focus for precise light contours.
✅ Gobo Compatibility – Can project patterns and shapes.
✅ Shutters (blend) – Internal metal slats to frame the light beam.
✅ Multi-Degree Lens Kits – Adjustable beam angle (from 5° to 50°).
✅ High Efficiency – More efficient than standard Fresnel lamps.
How does a LEKO work?
🔹 The ellipsoidal reflector concentrates the light to a focus point .
🔹 A lens determines how wide or narrow the beam of light is.
🔹 Shutters allow you to adjust the shape of the light beam.
🔹 Gobos can be placed in a slot to project patterns onto the stage or set.
🔹 Modern LEKOs use LEDs , while older versions contained halogen lamps.
LEKO vs. Fresnel spot
| Characteristic | LEKO (ERS) | Fresnel spot |
|---|---|---|
| Light beam | Tight and focused | Soft and wide spread |
| Shutters/blends | Yes, for sharp demarcation | No |
| Gobo compatibility | Yes | No |
| Focus setting | Sharp to soft | Soft diffuse |
| Usage | Patterns, key-lighting, precision lighting | General filling lighting |
💡 Use LEKO lamps for sharp light contours and projections . Use Fresnel lamps for soft, even distribution .
Where is a LEKO used?
🎭 Theaters and stage productions – For spotlights and projections.
🎶 Concerts & Events – To highlight performers accurately.
📽 Film and TV studios – For sharp lighting and patterns.
🏢 Architectural lighting – Projection of logos and decorative patterns.
LED LEKOs vs. traditional halogen LEKOs
✅ LED versions consume less energy, last longer and have adjustable color temperatures.
✅ Halogen LEKOs are still used, but LED is the future because of its durability and flexibility.
Conclusion
A LEKO (Ellipsoidal Reflector Spotlight) is a precision theater spotlight with adjustable focus, gobo support, and blending (shutters) . It's perfect for directional stage lighting, patterns, and logo projections .