diff --git a/deploy/roles/collectd/templates/leds.py b/deploy/roles/collectd/templates/leds.py
index d4f2f56..4694059 100644
--- a/deploy/roles/collectd/templates/leds.py
+++ b/deploy/roles/collectd/templates/leds.py
@@ -1,77 +1,77 @@
 #!/usr/bin/env python2
 
 import collectd
 import serial
 import subprocess
 from math import floor, ceil
 
 DEBUG = 1
 PORT = '/dev/ttyS1'
 SPEED = 9600
 CORES = int(subprocess.check_output('nproc'))
 
 LEDS_NUMBER = 8 # number of leds in a column
 LEDS_MAX = 100
 LEDS_NOCOL = '0 0 0 '
 
 FAN_MAX = 200
-TEMP_LOW = 20
+TEMP_LOW = 40
 TEMP_HIGH = 80
 
 COLORS = [
     '0 X X ', # cyan
     'X 0 X ', # magenta
     'X X 0 ', # yellow
     'X 0 0 ', # red
     '0 X 0 ', # green
     '0 0 X ', # blue
 ]
 
 hosts = set()
 temp = {}
 
 def debug(msg):
     if DEBUG:
         f = open('/tmp/debug', 'a+')
         f.write(str(msg) + "\n")
         f.close()
 
 def color(value, index):
     return COLORS[index].replace('X', str(int(value)))
 
 def write(vl, data=None):
     global hosts, temp
 
     line = ''
     hosts.add(vl.host)
     index = list(hosts).index(vl.host)
 
     if vl.type == 'temperature' and vl.plugin_instance == 'thermal_zone0':
         temp[vl.host] = float(vl.values[0])
         temp_last = max(temp.values())
         if temp_last > TEMP_LOW and temp_last < TEMP_HIGH:
             line += 'f %d ' % (temp_last * 2 / 3 - 20)
         elif temp_last > TEMP_HIGH:
             line += 'f %d ' % FAN_MAX
         else:
             line += 'f 0 '
 
     if vl.type == 'load':
         load1 = vl.values[0]
         load1 = load1 if load1 <= CORES else CORES
         leds_on = int(floor(LEDS_NUMBER / CORES * load1))
         line += 'l%d ' % index
         for i in xrange(LEDS_NUMBER - 1, -1, -1):
             if i < leds_on:
                 line += color(LEDS_MAX, index)
             else: 
                 line += LEDS_NOCOL
 
     if line != '':
         debug(line.strip())
         ser = serial.Serial(PORT, SPEED)
         ser.write(line)
         ser.close()
 
 collectd.register_write(write);