The 28.1 has 4 canopy options. “Standard Brushed Nickel” and “Standard White” directly attach to a standard junction box (not supplied). “Deep Brushed Nickel” and “Deep White” house the transformer within the canopy and are best used where a junction box is not available. Each pendant comes with either a 20-watt xenon or 1.5-watt LED lamp (requested at the time of ordering) and a transformer. For orders of more than 8 LED pendants, please specify in the order notes if you would like them to dim and one dimmable driver will be sent. Otherwise one transformer per pendant will be included.