31
Note on the Operation
Please use USB power supplies with an
output of 5 .0 V 2 .0 A (not included) to
operate the Rollei LUMIS Key Light Pro .
With other USB power supplies or USB
outputs on other products (e .g . computers, laptops),
error messages or automatic shutdown of the Rollei
LUMIS Key Light Pro may occur due to a deviating voltage .