EBESHW05 LED LAMP with 2.4G WiFi RF Exposure Info RF EXPOSURE Report_MPE Hangzhou Eboylamp Electronics Co., Ltd.

Hangzhou Eboylamp Electronics Co., Ltd. LED LAMP with 2.4G WiFi

Page 1 of EBESHW05 LED LAMP with 2.4G WiFi RF Exposure Info RF EXPOSURE Report_MPE Hangzhou Eboylamp Electronics Co., Ltd.
Page 2 of EBESHW05 LED LAMP with 2.4G WiFi RF Exposure Info RF EXPOSURE Report_MPE Hangzhou Eboylamp Electronics Co., Ltd.

RF Exposure Report
FCC-ID: 2AJ3WEBESHW05
RF Exposure Measurement
The limit for Maximum Permissible Exposure (MPE) specified in FCC 1.1310 is followed. The
gain of the antennas used in the product is extracted from the Antenna data sheets provided
and also the maximum total power input to the antenna is measured. Through the Friis
transmission formula and the maximum gain of the antenna, we can calculate the distance,
away from the product, where the limit of MPE is reached.
Although the Friis Transmission formula is far field assumption, the calculated result of that is
an over-prediction for near field power density. It is taken as worst case to specify the safety
range.
RF Exposure Limit
According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the
environmental impact of the human exposure to radio-frequency (RF) radiation as specified in
1.1307 (b)
Limits for Maximum Permissible Exposure (MPE)
Frequency Range
Electric Field
Magnetic Field
Power Density
(MHz)
Strength (V/m)
Strength (A/m)
(mW/cm²)
Limits for Occupational / controlled Exposures
300 - 1500
--
--
F/300
1500 – 100000
--
--
5.0
Limits for General population / Uncontrolled Exposure
300 - 1500
--
--
F/1500
1500 – 100000
--
--
1.0
F= Frequency in MHz
Friss Formula
Friss Transmission Formula: Pd = (Pout * G) / (4*pi*r²)
Where
Pd = power density in mW/cm²
Pout = output power to antenna in mW
G = gain of antenna in linear scale
Pi = 3.1416
R = Distance between observation point and the center of radiator in cm
If we know the maximum gain of the antenna and the total output power to the antenna,
through calculation, we will know MPE value at distance 20cm.
EUT Operation condition
EUT was enabled to transmit and receive at lowest, middle and highest channels.
Classification
The antenna of this product, under normal use condition, is at least 20cm away from the body of the
user. Warning statement to the user for keeping at least 20cm or more separation distance from the
antenna should be included in the User manual. So, this device is classified as Mobile device.
2.4G WIFI
Mode
802.11b/g/n20:2412-2462MHz
Detector
PEAK
802.11b
17±1dBm
802.11g
16±1dBm
802.11n20
16±1dBm
ANT Gain (G)
Antenna gain : 2dBi (gain of antenna in linear scale=1.58)
Channel
Protocol
802.11 b
802.11 g
802.11 n20
Output
Output
Power
Power to
ANT Gain(gain of
Frequenc
Power to
Limit
Density
Antenna
antenna in
Antenna
(mW/cm²)
(mW/cm²)
(dBm)
linear scale)
(MHz)
(mW)
1.58
1.58
1.58
2412
2412
2412
18 63.0957
17 50.1187
17 50.1187
0.01984
0.01576
0.01576
Download: EBESHW05 LED LAMP with 2.4G WiFi RF Exposure Info RF EXPOSURE Report_MPE Hangzhou Eboylamp Electronics Co., Ltd.
Mirror Download [FCC.gov]EBESHW05 LED LAMP with 2.4G WiFi RF Exposure Info RF EXPOSURE Report_MPE Hangzhou Eboylamp Electronics Co., Ltd.
Document ID4116454
Application ID3rufW4ManZFSQnyo3WHKlg==
Document DescriptionRF EXPOSURE Report_MPE
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeRF Exposure Info
Display FormatAdobe Acrobat PDF - pdf
Filesize21.92kB (274000 bits)
Date Submitted2018-12-26 00:00:00
Date Available2018-12-26 00:00:00
Creation Date2018-11-22 06:45:59
Producing SoftwareMicrosoft® Office Word 2007
Document Lastmod2018-11-22 06:45:59
Document TitleRF EXPOSURE Report_MPE
Document CreatorMicrosoft® Office Word 2007
Document Author: bovey

Source Exif Data [exif.tools]:
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File Type Extension             : pdf
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Page Count                      : 2
Language                        : zh-CN
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Author                          : bovey
Creator                         : Microsoft® Office Word 2007
Create Date                     : 2018:11:22 06:45:59+08:00
Modify Date                     : 2018:11:22 06:45:59+08:00
Producer                        : Microsoft® Office Word 2007