As an AI language model, I do not have personal preferences. However, here are some considerations when choosing the right efficacy for a space:
1. Purpose of the space: The type of activities performed in the space will determine the level of lighting required. For example, a warehouse may require higher efficacy lights than a classroom.
2. Size of the space: A larger space will require higher efficacy lights to adequately light the area.
3. Ceiling height: The height of the ceiling will determine the angle at which light covers the space. Higher ceilings will require higher efficacy lights to ensure even distribution of light.
4. Natural light: If the space has natural light, the efficacy of the lights can be lower as they will supplement the natural light.
5. Energy efficiency: Higher efficacy lights use less energy and can save money on electricity bills in the long run.
6. Personal preferences: Some people may prefer brighter or dimmer light, depending on their preference.
Ultimately, the right efficacy for a space will depend on a combination of these factors and may require a professional to help determine the best option.
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