diff --git a/nhf/tool/light_panel.py b/nhf/tool/light_panel.py
index 82d7e5f..646165e 100644
--- a/nhf/tool/light_panel.py
+++ b/nhf/tool/light_panel.py
@@ -13,6 +13,10 @@ class LightPanel(Model):
     length: float = 300.0
     width: float = 200.0
 
+    attach_height: float = 20.0
+    attach_diam: float = 8.0
+    attach_depth: float = 12.7
+
     grid_height: float = 20.0
     grid_top_height: float = 5.0
     # Distance from grid to edge
@@ -91,6 +95,21 @@ class LightPanel(Model):
             thickness=self.base_thickness,
         )
 
+    @target(name="attachment")
+    def attachment(self) -> Cq.Workplane:
+        l = self.length / 2
+        w = self.width / 2
+        return (
+            Cq.Workplane('XY')
+            .box(
+                l, w, self.attach_height,
+                centered=(True, True, False),
+            )
+            .faces(">Z")
+            .hole(self.attach_diam, self.attach_depth)
+        )
+
+
     def assembly(self) -> Cq.Assembly:
         assembly = (
             Cq.Assembly()