The YaYaHo Part A is designed by Ingo Maurer. This part is included already with the lamp. It features a 200 Watts transformer and a "Watch Tronic" for ceiling and wall installation. This is essential for including additional lights.
| Manufacturer Model number(s) | 1902200 | 1904250 |
| Lamping type | None |
| Lamping | Transformer:1 x 200 Watts (230/125 V) |
| Material(s) | Aluminum |
| Socket type | None |
| Connection type | Hardwire |
| Country of manufacturer | Germany |
