2ATWW-JHD-TWWR2.4G DC remote control

Manufacturer: Shenzhen Jiangjing Lighting Co.,Ltd. Product name: 2.4G DC remote control Model No. : JHD-TWWR, JWD-TWWR Trade mark: Operation frequency: 2402MHz-2465MHz Input: DC 3V from battery Antenna Gain(dbi):1.5dbi Control the brightness of the light through the remote control buttons, heating and cooling. Key:On and off Key:Control brightness Key: Control cold and warm light Key；Default brightness This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Differences Description We, Shenzhen Jiangjing Lighting Co.,Ltd. state: FCC ID: 2ATWW-JHD-TWWR Product name: 2.4G DC remote control Model: JHD-TWWR, JWD-TWWR All model’s the software and electric circuit are the same, only with the model name different. Signature: Name yi yongwang Position Engineer Company Name Shenzhen Jiangjing Lighting Co.,Ltd. Address 3-5 Floor, Building A & 4-5 Floor, Building C, Aiqun Road, Tongfuyu Industrial Zone, Shangwu Community, Shiyan Street, Bao'an District, Shenzhen City, Guangdong Province, China Tel +8675586134780 Fax / Email [email protected]

March 5, 2021 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2ATWW-JHD-TWWR Product Name: 2.4G DC remote control Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential: Schematics Long-term confidential Block diagram Long-term confidential Operation description Long-term confidential These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. Signature: Name yi yongwang Position Engineer Company Name Shenzhen Jiangjing Lighting Co.,Ltd. Address 3-5 Floor, Building A & 4-5 Floor, Building C, Aiqun Road, Tongfuyu Industrial Zone, Shangwu Community, Shiyan Street, Bao'an District, Shenzhen City, Guangdong Province, China Tel +8675586134780 Fax / Email [email protected] Shenzhen Jiangjing Lighting Co.,Ltd.

FCC ID: 2ATWW-JHD-TWWR

Label Size: 1.5x1.0cm Location FCC ID: 2ATWW-JHD-TWWR Shenzhen Jiangjing Lighting Co.,Ltd.Model Name: 2.4G DC remote control Model No.: JHD-TWWR

FCC ID: 2ATWW-JHD-TWWR

RF Exposure evaluation According to 447498 D01 General RF Exposure Guidance v06: The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where f(GHz) is the RF channel transmit frequency in GHz. Power and distance are rounded to the nearest mW and mm before calculation. The result is rounded to one decimal place for comparison. eirp = p t x g t = (E x d) 2 /30 where: p t = transmitter output power in watts, g t = numeric gain of the transmitting antenna (unitless), E = electric field strength in V/m, --- 10 ((dBuV/m)/20) /10 6 , d = measurement distance in meters (m)--- 3m. So p t = (E x d) 2 /(30 x g t ) Worse case is as below: Field strength = 72.23 dBuV/m @3m Ant gain 1.5 dBi; so Ant numeric gain=1.41 So p t ={[10 (72.23/20) /10 6 x3] 2 /(30x1.41)}x1000mW = 0.004 mW So (0.004mW/5mm)x √2.465 GHz = 0.001 <3.0 for 1-g SAR Then SAR evaluation is not required.

   FCC TEST REPORT FCC ID: 2ATWW-JHD-TWWR 2Q%HKDOIRI 6KHQ]KHQ-LDQJMLQJ/LJKWLQJ&R/WG *'&UHPRWHFRQWURO 0RGHO1R-+'7::5-:'7::5    3UHSDUHGIRU6KHQ]KHQ-LDQJMLQJ/LJKWLQJ&R/WG $GGUHVV)ORRU%XLOGLQJ$ )ORRU%XLOGLQJ&$LTXQ5RDG7RQJIX\X ,QGXVWULDO=RQH6KDQJZX&RPPXQLW\6KL\DQ6WUHHW%DR ಬDQ'LVWULFW 6KHQ]KHQ&LW\*XDQJGRQJ3URYLQFH&KLQD   3UHSDUHG%\6KHQ]KHQ$OSKD3URGXFW7HVWLQJ&R/WG $GGUHVV%XLOGLQJL1R/L[LQ5RDG)X\RQJ6WUHHW%DR DQ'LVWULFW  6KHQ]KHQ*XDQJGRQJ&KLQD       5HSRUW1XPEHU  $&5  'DWHRI5HFHLSW  'HFHPEHU  'DWHRI7HVW  'HFHPEHU±-DQXDU\  'DWHRI5HSRUW )HEUXDU\  9HUVLRQ1XPEHU 9  3DJHRI5HSRUW1R$&5 TABLE OF CONTENTS 'HVFULSWLRQ3DJH 1. Summary of Standards and Results..................................................................................6  'HVFULSWLRQRI6WDQGDUGVDQG5HVXOWV 2. General Information ...........................................................................................................7  'HVFULSWLRQRI'HYLFH (87   $FFHVVRULHVRI'HYLFH (87   7HVWHG6XSSRUWLQJ6\VWHP'HWDLOV  %ORFN'LDJUDPRI&RQQHFWLRQ%HWZHHQ(87DQG6LPXODWRUV  7HVW0RGH'HVFULSWLRQ  7HVW&RQGLWLRQV  7HVW)DFLOLW\  0HDVXUHPHQW8QFHUWDLQW\  7HVW(TXLSPHQW/LVW 3. Power Line Conducted Emission Test.............................................................................12  %ORFN'LDJUDPRI7HVW6HWXS  7HVW/LPLWV  &RQILJXUDWLRQRI(87RQ7HVW  2SHUDWLQJ&RQGLWLRQRI(87  7HVW3URFHGXUH  7HVW5HVXOWV 4. Radiated Emission Test.....................................................................................................14  %ORFN'LDJUDPRI7HVW6HWXS  7HVW/LPLW  &RQILJXUDWLRQRI(87RQ7HVW  2SHUDWLQJ&RQGLWLRQRI(87  7HVW3URFHGXUH  7HVW5HVXOWV 5. Band Edge Test..................................................................................................................22  %ORFN'LDJUDPRI7HVW6HWXS  7HVW/LPLW  &RQILJXUDWLRQRI(87RQ7HVW  2SHUDWLQJ&RQGLWLRQRI(87  7HVW3URFHGXUH  7HVW5HVXOWV 6. Occupied Bandwidth Test.................................................................................................27  %ORFN'LDJUDPRI7HVW6HWXS  7HVW/LPLW  7HVW3URFHGXUH  7HVW5HVXOWV 7. Antenna Requirement.......................................................................................................29  6WDQGDUG5HTXLUHPHQW  $QWHQQ…

Text truncated - open the document above for the full version.

Photos of Radiated Emission