Answer: True
Step-by-step explanation:
The primary function of ERS is to light up specific proximity and they are used for spotlights. They can form a small sharp circle in a certain place.
- ERS (Ellipsoidal reflector spotlight) can be used with a metal gobo and glass gobo.
- Gobos are used with them to change the pattern or sample of the light. They are often used on the stages.