Egg crate louvers serve a similar function to a top hat but do so in only a 1/2" of depth. A 45 degree cut-off is obtained by using cells that are 1/2" x 1/2", by 1/2" deep. Egg crate louvers drop into accessory holders and give a sleek appearance to the lighting fixture while providing good beam control. Egg crate louvers are available for a variety of fixtures.
Specifications (refer to second image):