Connecting the LEDs / Power Supply
Important: The module must be operated with a power supply, that is matched to the used LEDs!
Important: Matched LED lamps, including power supplies are available from us. Also we supply
complete kits, including plug-n-play connectors.
Important: Improper power supplies can lead to malfunctions, (unwonted) flickering effects or - as
worst case - overheating. We strongly recommend to use high-quality (stabilised) switching power
supplies!
Of course, one power supply can be used for several Chromoflex modules in parallel (if the maximum
output power of the supply is regarded).
The minimum voltage for correct operation is 7 Volts, maximum voltage is 24 Volts (+ 5%).
Model „I350“
This model has 3 lines of 350 mA each. The power supply must be matched to the number of used
LEDs in series: most high-power LEDs for 350mA constant current require around 3 - 3.7 Volts
(depending on the colour, type and manufacturerer). Normally green and blue need the highest
voltages, the forward voltage of red is normally much lower. The „I350“ itself need additionally about
0.5 Volts to maintain line regulation.
Too high voltages will cause unnecessary heat in the module. For internal temperatures >= 80°C the
module will power off (reversible).
Constant current LEDs must be connected in series. Depending on the number we recommend as
voltage for the power supply (guidance value, depending on the used LEDs):
1 RGB-Group - abt. 7 - 7.5
Volt Power supply (abt. 7 Volt is the minimum operating voltage of
2 RGB-Groups - abt. 7.5 - 9
Volt Power supply the electronics)
3 RGB-Groups - abt. 10 - 13
Volt Power supply
4 RGB-Groups - abt. 12 - 15
Volt Power supply
5 RGB-Groups - abt. 15 - 18
Volt Power supply
6 RGB-Groups - abt. 18 - 24
Volt Power supply
Chromoflex - Manual - English V1.07
- www.barthelme.de
Rev. 02.07.2006
- 3 -
