LG 32SE3D Owner's Manual page 54

Make sure to read the Safety Precautions before using the
product.
The model and serial numbers of the SET are located on the
back and one side of the SET. Record it below should you
ever need service.
MODEL
SERIAL
ENERGY STAR® is a set of power-saving
guidelines issued by the U.S.Environmental
Protection Agency (EPA).
As an ENERGY STAR® Partner LGE U. S. A.,
Inc. has determined that this product
meets the ENERGY STAR® guidelines for
energy efficiency.
Refer to ENERGYSTAR.gov for more information on the
ENERGY STAR® program.
Temporary noise is normal when powering ON or OFF
this device.