Quick start Guide
Optical Slave - Optical slave mode allows your Lume Cube to detect additional light 
sources and fire simultaneously. Hold the right (Flash) button for 3 seconds to enable 
the Optical Slave. Or, open the Pro Mode in the Lume Cube Pro App to turn on the 
“Opto Trigger”. Next, position your main light source directly at the Lume Cube to 
trigger the flash when your main flash fires.
Red Eye - The Red Eye mode will fire a sequence of short flashes before the final flash 
to reduce Red Eye in your images. This is best used in low light when taking portraits, 
selfies or group shots. 
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WARRANTY PAGES: 
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LUME CUBE LIMITED WARRANTY 
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Who is covered: 
This warranty is extended only to the original end-use purchaser or the person 
receiving the product as a gift, and shall not be extended to any other person or 
transferee. !
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What is covered: 
Lume Cube warrants that this product, when delivered to you in new condition, in 
original packaging, from a Lume Cube authorized reseller or directly from Lume Cube 
and used in normal conditions, is free from any defects in manufacturing, materials and 
workmanship. !
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What is not covered: 
This warranty does not cover defects resulting from improper or unreasonable use or 
maintenance; failure to follow operating instructions; accident; excess moisture; power 
surges; connections to improper voltage supply;
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unauthorized alteration or modification of original condition; damages caused by 
inadequate packing or shipping procedures; loss of, damages caused by use with non-
Lume Cube products; product that requires modification or adaptation to enable it to 
operate in any country other than the country for which it was designed, manufactured, 
approved and/or authorized,or repair of products damaged by these modifications; 
and products purchased from unauthorized !
dealers. !





