2A438-U8COB Photographic Video Light

FCC Statement: 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. 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 guarant ee 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 not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environm ent. This transmitter must not be co‐ located or operating in conjunction with any other antenna or transmitter. This equipment should be installed and operated with minimum distance 20cm between the radiator&your body.

(ShenzhenLinengTechnologyCo.,Ltd.) (2023.10.25) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(i)requestfor(FCCID:2A438-U8) [ShenzhenLinengTechnologyCo.,Ltd.](“theapplicant”)certifiesthattheequipment forwhichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceiving anequipmentauthorizationpursuanttosection2.903oftheFCCrules. Sincerely, (Applicantsignature) (Applicantprintedname)CherryZhong (ShenzhenLinengTechnologyCo.,Ltd.) (2023.10.25) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(ii)requestfor(FCCID:2A438-U8) [ShenzhenLinengTechnologyCo.,Ltd.](“theapplicant”)certifiesthat,asofthedateof thefilingoftheapplication,theapplicantisnotidentifiedontheCoveredListasan entityproducing“covered”equipment. Sincerely, (Applicantsignature) (Applicantprintedname)CherryZhong

ShenzhenLinengTechnologyCo.,Ltd. 601/6 F,NO.BDaweiBusinessShikongBuilding,WestJiansheRoad,MinzhiStreet,Longhua District,ShenzhenCity Date: 2023-11-02 Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d)(7) Filing SUBJECT: FCC Application for Grantee code: 2A438 Fluigent certifies that, as of the date of the filing of the application,Lume Cube, Inc. (U.S. Agent) is our designated U.S. agent for service of process for the above referenced Grantee code. Fluigent accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Lume Cube, Inc. (U.S. Agent) accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced Grantee code. Designated U.S. Agent Information: FRN: 0032743536 Name: Lume Cube, Inc. Address:2231 Rutherford Rd Suite 100 Carlsbad, CA 92008 United States Contact Person: Cherry Zhong Tel.: (858)352-6067 Email:[email protected] Sincerely, Signed on behalf of (Fluigent) ShenzhenLinengTechnologyCo.,Ltd. Signed on behalf ofLumeCube,Inc.ሺU.S. Agentሻ Name: Cherry ZhongName:Cherry Zhong Title: ManagerTitle: Manager Date:2023-11-02Date:2023-11-02

Shenzhen Lineng Technology Co., Ltd. Agent Authorization Letter 2023-10-25 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen Most Technology Service Co., Ltd. to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Name: Cherry Zhong Position: Manager Company Name: Shenzhen Lineng Technology Co., Ltd. Address: 601/6th floor, NO.B Dawei Business Shikong Building, West Jianshe Road, Minzhi Street,Longhua District, Shenzhen City,China Tel / Fax 0755-21052867 /0755-21052867 E-Mail: [email protected]

ShenzhenLinengTechnologyCo.,Ltd. LongTermConfidentialityRequestLetter 2023-10-25 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 USA RE:CONFIDENTIALITYREQUESTFOR(FCCID:2A438-U8) ToWhomItMayConcern: Thisletterservesasanofficialrequestforconfidentialityundersections0.457and0.459of CFR47.Wehaverequestedthatthe -e.g.Blockdiagram -e.g.SCH -e.g.OperationalDescription requiredtobesubmittedwiththisapplicationbepermanentlywithheldfrompublicreview. Theabovedocumentsarecompanyproprietaryinformationthatcouldnevergetinto thepossessionofyourcompetition. Pleasecontactmeifthereisanyinformationyoumayneed. Sincerely, Name:CherryZhong Position:Manager CompanyName:ShenzhenLinengTechnologyCo.,Ltd. Address:601/6thfloor,NO.BDaweiBusinessShikongBuilding,WestJianshe Road,MinzhiStreet,LonghuaDistrict,ShenzhenCity,China Tel/Fax0755-21052867/0755-21052867 E-Mail:[email protected]

Modeldifferenceletter 2023.10.27 OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA ThisisanewApplicationfromMinrekHongkongLimited ModelNo.: U8 ， KSLC101,LD-C60 OnlythemodelBDPF03GGGWwastested,Theirelectricalcircuitdesign, layout,componentsusedandinternalwiringareidentical,Onlythemodel nameandpackagingaredifferent. Thankyouforyourcooperation! Yourssincerely, Signatory: Sincerely, Signature: Name:CherryZhong Title:Manager

ModelNo.:U8 FRONTVIEWOFSAMPLE BACKVIEWOFSAMPLE ModelNo.:U8 LEFTVIEWOFSAMPLE RIGHTVIEWOFSAMPLE ModelNo.:U8 TOPVIEWOFSAMPLE BOTTOMVIEWOFSAMPLE

FCCID:2A438-U8

ModelNo.:U8 Page1of5 INTERNALPHOTOOFSAMPLE INTERNALPHOTOOFSAMPLEPCB BTAntenna ModelNo.:U8 Page2of5 INTERNALPHOTOOFSAMPLEPCB INTERNALPHOTOOFSAMPLEPCB ModelNo.:U8 Page3of5 INTERNALPHOTOOFSAMPLEPCB INTERNALPHOTOOFSAMPLEPCB ModelNo.:U8 Page4of5 INTERNALPHOTOOFSAMPLEPCB INTERNALPHOTOOFSAMPLEPCB ModelNo.:U8 Page5of5 INTERNALPHOTOOFSAMPLEPCB INTERNALPHOTOOFSAMPLEPCB

Shenzhen Most Technology Service Co., Ltd. No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China. RF Exposure Evaluation Report Report Reference No. ..................... : FCC ID.. .......................................... : MTEB23100221-H 2A438-U8 Compiled by ( position+printed name+signature) .. : File administrators Alisa Luo Supervised by ( position+printed name+signature) .. : Test Engineer Sunny Deng Approved by ( position+printed name+signature) .. : Manager Yvette Zhou Date of issue ..................................... : Oct.26,2023 Representative Laboratory Name .: Shenzhen Most Technology Service Co., Ltd. Address ............................................ : No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China. Applicant’s name ............................ : Shenzhen Lineng Technology Co., Ltd Address ............................................ : 601/6th floor, NO.B Dawei Business Shikong Building, West Jianshe Road, Minzhi Street,Longhua District, Shenzhen City,China. Test specification/ Standard ..........: 47 CFR Part 1.1307 47 CFR Part 2.1091 TRF Originator .................................. : Shenzhen Most Technology Service Co., Ltd. Shenzhen Most Technology Service Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Most Technology Service Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Most Technology Service Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ..................... : COB Photographic Video Light Trade Mark ...........................: LituFoto Manufacturer .................................... : Shenzhen Lineng Technology Co., Ltd Model/Type reference....................... : U8 Listed Models .................................. : U8r,KSLC10,LD-C60 Modulation Type ............................... : GFSK Operation Frequency ........................ : From 2402MHz to 2480MHz Hardware Version .............................. V1.0 Software Version ............................... V1.0 Rating ............................................... : DC 12V-24V Result................................................ : PASS Report No.: MTEB23100221-H Page 2 of 5 T E S T R E P O R T Equipment under Test : COB Photographic Video Light Model /Type : U8 Listed Models U8r,KSLC10,LD-C60 Remark Different packaging only. Applicant : Shenzhen Lineng Technology Co., Ltd Address : 601/6th floor, NO.B Dawei Business Shikong Building, West Jianshe Road, Minzhi Street,Longhua District, Shenzhen City,China. Manufacturer : Shenzhen Lineng Technology Co., Ltd Address : 601/6th floor, NO.B Dawei Business Shikong Building, West Jianshe Road, Minzhi Street,Longhua District, Shenzhen City,China. Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: MTEB23100221-H Page 3 of 5 1. Revision History Revision Issue Date Revisions Revised By 00 2023.10.26 Initial Issue Alisa Luo Report No.: MTEB23100221-H Page 4 of 5 2. SAR Evaluation 2.1 RF Exposure Compliance Requirement 2.1.1Standard Requirement According to §1.1307(e)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to §1.1310 and §2.1091 RF exposure is calculated. KDB447498 D01: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies. 2.1.2 Limits F= Frequency in MHz Friis Formula Friis transmission formula: Pd = (Pout*G)/(4* Pi * R 2) 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 center of the radiator in cm Pd id the limit of MPE, 1 mW/cm2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Report No.: MTEB23100221-H Page 5 of 5 2.1.3 EUT RF Exposure Measurement Data BLE GFSK Test channel Peak Output Power (dBm) Tune up tolerance (dBm) Maximum tune-up Power (dBm) Lowest(2402MHz) 0.495 0.495±1 1.495 Middle(2441MHz) 1.140 1.140±1 2.140 Highest(2480MHz) 0.287 0.287±1 1.287 Worst case: GFSK Channel Maximum Peak Conducted Output Power (dBm) Maximum Peak Conducted Output Power (MW) Antenna Gain (dBi) Power Density at R = 20 cm (mW/cm2) Limit Result Highest(2441 MHz) 1.140 1.3 5 0.00082 1.0 Pass Note: 1) Refer to report MTEB23100221-R for EUT test Max Conducted average Output Power value. Note: 2) Pd = (Pout*G)/(4* Pi * R2)=( 1.3*3.16)/(4*3.1416*20 2 )=0.00082 Note: 3 )EUT's Bluetooth module is more than 20cm away from the human body. .......................THE END OF REPORT.........................

深圳市红心科技电子有限公司http://www.hxrf-antenna.com 1 深圳市宝安区西乡街道新安第二工业区C10栋西面2楼电话：0755-23205219传真：0755-23205219 深圳市红心科技电子有限公司 产品承认书 SPECIFICATIONFORAPPROVAL 公司名称： 品名： 2.4GFPC 天线 料号： HX-FPC24-4017-70B1 客户料号： 规格：详见规格书 日期： 2022-12-17 客户回签 : 工程部品质部批准 深圳市红心科技电子有限公司 工程部品质部批准 庄伟峰张欢刘卢 深圳市红心科技电子有限公司http://www.hxrf-antenna.com 2 深圳市宝安区西乡街道新安第二工业区C10栋西面2楼电话：0755-23205219传真：0755-23205219 一：天线参数 DesignSpecificationsTypicalUnits 天线形式FPC天线 工作频率（workingFrequency）2400-2500MHZ 增益(Gain)5DBi 天线效率（Antennaefficiency）35~80% 电压驻波比（VSWR）<1.8 极化方式（Ploriaztion）垂直极化 辐射方向（Radiationpattern）全向 馈电阻抗（impedance）50ohm 功率容量（Powerhandling）33dbm 天线接口（Interface）IPEX1代 天线尺寸（Overaldimensions）40*17mm 重量（Weight）无要求 工作温度（OperatinTemp）-30-70°C 储存温度（StoringTemp）-30-70°C 深圳市红心科技电子有限公司http://www.hxrf-antenna.com 3 深圳市宝安区西乡街道新安第二工业区C10栋西面2楼电话：0755-23205219传真：0755-23205219 二：天线实物图 注：1.天线参数是根据模拟环境测试，针对不同的产品会有性能偏差 2.天线功能较为敏感，主体周边结构有变更请通知我们评估 三、VSWR（电压驻波比）/ReturnLoss（回波损耗）/SmithChart （史密斯圆图） VSWR（电压驻波比） 深圳市红心科技电子有限公司http://www.hxrf-antenna.com 4 深圳市宝安区西乡街道新安第二工业区C10栋西面2楼电话：0755-23205219传真：0755-23205219 ReturnLoss（回波损耗） SmithChart（史密斯圆图） 深圳市红心科技电子有限公司http://www.hxrf-antenna.com 5 深圳市宝安区西乡街道新安第二工业区C10栋西面2楼电话：0755-23205219传真：0755-23205219 四：贮藏环境 工作温度 :-30to70 º C 贮藏温度 :-30to70 º C 五：尺寸规格

ModelNo.:U8 CETESTSETUP RETESTSETUP ModelNo.:U8 RETESTSETUP