diff --git a/arduino/ledbar.h b/arduino/ledbar.h
index 888da17..7c4ffad 100644
--- a/arduino/ledbar.h
+++ b/arduino/ledbar.h
@@ -83,17 +83,17 @@ const int cpin[5 * NUM_TLCS][CH] = {
 
 /* cca 2.7ohm resistor per channel */
 const int cmax[cpinsets][CH] = {
-  { 100, 250, 138 },
-  { 100, 250, 138 },
-  { 100, 250, 138 },
-  { 100, 240, 230 },
-  { 100, 230, 188 },
+  { 120, 250, 190 }, /* box 11 */
+  { 100, 250, 180 }, /* box 2 */
+  { 100, 250, 180 }, /* box 3 */
+  { 100, 250, 180 }, /* box 4 */
+  { 100, 250, 180 }, /* box 5 */
 
-  { 100, 250, 138 },
-  { 100, 250, 138 },
-  { 100, 250, 138 },
-  { 100, 240, 230 },
-  { 100, 230, 188 },
+  {  80, 250, 190 }, /* box 6 */
+  {  90, 250, 160 }, /* box 7 */
+  { 100, 250, 180 }, /* box 8 */
+  { 100, 250, 230 }, /* box 9 */
+  { 100, 250, 180 }, /* box 10 */
 #if 0
 
   { 100, 250, 138 },