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Home
Our Products
AC/DC Power Supplies
DC Electronic Loads
Battery Chargers
DC/DC Converters
AC UPS & Transfer Systems
Batteries
DC/AC Inverters
DC Power Systems & Accessories
Battery Monitoring & Conditioning
Power Quality
Custom Solutions
Low DC Power Applications
Medium & High DC Power Applications
Industries
Land Mobile Radio
Defence
Medical
Mining – Oil & Gas
Railway & Transport
Utilities
Critical Infrastructure
IT & Telecom
OEM
Services
Custom Design
Power Quality Services
Helios Service Department
Turnkey Solutions
Support
Application Notes
RMAs
Privacy Policy
Terms and Conditions
SR Series Comms Downloads
About Us
Our Business
History
Our Team
News
Contact Us
My Enquiries
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Knowledgebase
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Application Notes
Application Notes
LED Power Supplies Frequently Asked Question
AC Input Current & Harmonics
Test Procedures For High Voltage Power Supplies
Electrical Requirements for EN50155
Common LED Configurations
Principles of Power Conversion
Selecting a Power Supply
DC Standby Systems
Parallel Operation
Power Supply Signals
Rechargeable Batteries
IP Ratings
Class 2 or Class II insulation
Inrush Currents on DC Power Supplies
Power Topics for Power Supply users
LED-AN1107
AC Power Sources
Output Protection
Power Supply Cables & Connectors
Cable Sizes
TAGS
Batteries
DC distribution
Highvoltage
LEDPowerSupplies
Railway