There are multiple types of dimmers available on the market, some of which are compatible with the Dyson Suspended lights and some that are not. These include.
Compatible
OSram DALI MCU
Analogue dimming - This is usually referred to as 1-10v dimming.
DALI - A lighting management control system.
Not Compatible
AC mains/TRIAC
AC/TRIAC dimmers are designed for resistive loads such as incandescent or halogen lights. These phase-controlled dimmers are not compatible with LEDs since LEDs do not appear as a resistive load.