Is there an extra charge for the hotel led screen?

There is no extra charge. This is an auxiliary service. Generally, it is rented to discuss with the hotel management and see each other's attitude. If it is a hotel screen, there may be an extra charge, because many hotels and wedding screens are rented out, not their own. You can find relevant units to defend your rights. If you think it's unreasonable and it doesn't affect your wedding, it's a supporting service.