Still own your Classics and want to get a bit more out of them? This dichroic filter works on DLH4 and DLHM4-300 classic halogen dedolight heads. Place this filter in the head's accessory slot to convert the tungsten 3200K source to daylight 5600K and get more functionality out of your Classic. Dichroic allows you to get the most transferral of light while only loosing a stop.