Important information, Safety information, Changes – PRG OHM User Manual 1.12 User Manual
Page 3: Measuring correlated color temperature (cct)

OHM™ LIGHT USER MANUAL
1
IMPORTANT INFORMATION
Safety Information
The symbols below are used throughout this manual to identify important safety information.
Heed all warnings and safety information.
Changes
PRG provides this manual 'as is' without warranty of any kind, either expressed or implied, including but not limited to
the implied warranties or merchantability and fitness for a particular purpose. PRG may make improvements and/or
changes to the product(s) and/or the program(s) described in this publication at any time without notice.
This publication could contain technical inaccuracies or typographical errors. Changes are periodically made to the
information in this publication; these changes are incorporated in new editions of this publication.
Measuring Correlated Color Temperature (CCT)
The OHM Light utilizes an LED source that is optimized for the film, TV, and image capture industries. Current color
meters cannot be used to accurately read the correlated color temperature (CCT) of OHM and other discontinuous-
spectrum light sources.
Color meters in use today are designed for a full spectrum source such as incandescent lights. These meters possess
only 3 sensors to measure the light output: red, green, and blue. As such, a narrow band light source, such as OHM
may not read correctly.
PRG and Gekko Technology have taken great care in ensuring that the CCT of the light emanating from OHM matches
traditional light sources. This allows you to easily place OHM alongside your traditional lighting fixtures.
If in any doubt, it is the users responsibility, as is customary, to shoot image capture tests when combining sources
using different core technology such as HMI, florescent, tungsten or simple RGB LED fixtures to ensure compatibility.
SYMBOL
MEANING
Warning, Danger or Caution
Risk of injury to yourself or the product.
Risk of Electrical Shock
Risk of severe electrical shock.
Risk of Electrical Shock. No serviceable parts inside.
Observe all local and national electrical and environmental codes.
The socket-outlet shall be installed near the equipment and shall be easily accessible.
WARNING