diff --git a/base_tef.py b/base_tef.py
index 089c550..35a29e1 100644
--- a/base_tef.py
+++ b/base_tef.py
@@ -23,8 +23,8 @@ class BaseTEF668X:
         self.p.write_i2c(self.address, b"\x1c\x00\x00")
         self.p.write_i2c(self.address, b"\x1c\x00\x74")
         def send_patch(_patch: bytes):
-            for i in range(0, len(_patch), 64): # More data in a single step is less data sent over serial
-                data = _patch[i:i+64]
+            for i in range(0, len(_patch), 24):
+                data = _patch[i:i+24]
                 if self.p.write_i2c(self.address, b"\x1b" + data)[0] != 0: raise Exception
         send_patch(bytes(patch))
         self.p.write_i2c(self.address, b"\x1c\x00\x00")