GW QSLMS2.EM-H2H5-XX310-1U1V-65-R18

www.osram-os.com GW QSLMS2.EM DATASHEET GW QSLMS2.EM Datasheet   Published by ams-OSRAM AG Tobelbader Strasse 30, 8141 Premstaetten, Austria Phone +43 3136 500-0 ams-osram.com © All reserved | Version 1.1 | 2022-11-02 1 rights GW QSLMS2.EM DATASHEET OSCONIQ® S 3030 GW QSLMS2.EM The OSCONIQ® S 3030 is a high efficacy package for indoor professional applications. It uses sapphire flip chip technology to reach impressive performance and reliability and comes in a standard form factor to enable drop-in replacements. Applications - Indoor Lighting Features - Package: white SMT package  - Typ. Radiation: 120° (Lambertian emitter) - Color temperature: 2200K - 6500K - CRI: 80 (min.), R9: 0 (min.) - ESD: 5 kV acc. to ANSI/ESDA/JEDEC JS-001 (HBM) - Luminous Flux: typ. 38.6 lm @ 4000 K  - Luminous Efficacy: typ. 220 lm/W @ 4000 K 2 | Version 1.1 | 2022-11-02 GW QSLMS2.EM DATASHEET Ordering Information  Type Color temperature  Luminous Flux 1) IF = 65 mA ΦV Ordering Code GW QSLMS2.EM-H2H5-XX310-1U1V 2200 K 30.0 ... 36.0 lm Q65113A5095 GW QSLMS2.EM-H2H5-XX38-1U1V 2700 K 30.0 ... 36.0 lm Q65113A5089 GW QSLMS2.EM-H5H8-XX37-1U1V 3000 K 34.5 ... 40.5 lm Q65113A5090 GW QSLMS2.EM-H5H8-XX36-1U1V 3500 K 34.5 ... 40.5 lm Q65113A5091 GW QSLMS2.EM-H7H9-XX35-1U1V 4000 K 37.5 ... 42.0 lm Q65113A5092 GW QSLMS2.EM-H7H9-XX33-1U1V 5000 K 37.5 ... 42.0 lm Q65113A5093 GW QSLMS2.EM-H7H9-XX32-1U1V 5700 K 37.5 ... 42.0 lm Q65113A5094 GW QSLMS2.EM-H6H9-XX31-1U1V 6500 K 36.0 ... 42.0 lm Q65113A5096   3 | Version 1.1 | 2022-11-02 GW QSLMS2.EM DATASHEET Maximum Ratings Parameter Symbol Operating Temperature Top min. max. -40 °C 105 °C Storage Temperature Tstg min. max. -40 °C 120 °C Junction Temperature Tj max. 110 °C Forward Current TJ = 25 °C IF min. max. 10 mA 200 mA Reverse voltage 2) VR ESD withstand voltage acc. to ANSI/ESDA/JEDEC JS-001 (HBM) VESD   4 | Version 1.1 | 2022-11-02 Values Not designed for reverse operation 5 kV GW QSLMS2.EM DATASHEET Characteristics IF = 65 mA; TJ = 25 °C Parameter Symbol Viewing angle at 50% IV 2φ typ. 120 ° Forward Voltage 3) IF = 65 mA VF min. typ. max. 2.65 V 2.70 V 2.75 V Reverse current 2) IR Color Rendering Index 4) CRI min. 80 Color Rendering Index (R9) 4) CRI (R9) min. 0 Electrical thermal resistance junction/solderpoint with efficiency ηe = 64.1 % RthJS elec. typ. max. 9.6 K / W 12.0 K / W   5 | Version 1.1 | 2022-11-02 Values Not designed for reverse operation GW QSLMS2.EM DATASHEET Brightness Groups  Group Luminous Flux 1) IF = 65 mA min. ΦV Luminous Flux 1) IF = 65 mA max. ΦV H2 30.0 lm 31.5 lm H3 31.5 lm 33.0 lm H4 33.0 lm 34.5 lm H5 34.5 lm 36.0 lm H6 36.0 lm 37.5 lm H7 37.5 lm 39.0 lm H8 39.0 lm 40.5 lm H9 40.5 lm 42.0 lm Forward Voltage Groups  Group Forward Voltage 3) min. VF Forward Voltage 3) max. VF 1U 2.65 V 2.70 V 1V 2.70 V 2.75 V   6 | Version 1.1 | 2022-11-02 GW QSLMS2.EM DATASHEET Chromaticity Coordinate Groups   7 | Version 1.1 | 2022-11-02 5) GW QSLMS2.EM DATASHEET Chromaticity Coordinate Groups CCT Center Cx Center Cy 3step a 3step b 5step a 5step b Ø 2200 K 0.5020 0.4156 0.0072 0.0040 0.0120 0.0067 39.9 2700 K 0.4577 0.4098 0.0080 0.0041 0.0133 0.0068 54.1 3000 K 0.4339 0.4032 0.0086 0.0042 0.0142 0.0069 53.7 3500 K 0.4077 0.3929 0.0093 0.0042 0.0155 0.0069 53.9 4000 K 0.3818 0.3796 0.0094 0.0041 0.0157 0.0068 53.4 5000 K 0.3446 0.3551 0.0081 0.0035 0.0135 0.0059 59.8 5700 K 0.3287 0.3425 0.0072 0.0032 0.0119 0.0052 58.8 6500 K 0.3123 0.3282 0.0066 0.0027 0.0110 0.0045 58.1   8 | Version 1.1 | 2022-11-02 GW QSLMS2.EM DATASHEET   1 CCT 2200 K 2700 K 3000 K 3 4 5 Group Cx Cy Cx Cy Cx Cy Cx Cy Cx Cy A 0.5155 0.4347 0.5044 0.4344 0.4921 0.4156 0.4941 0.4156 0.5088 0.4249 B 0.5155 0.4347 0.5265 0.4350 0.5132 0.4163 0.5101 0.4161 0.5088 0.4249 C 0.5132 0.4163 0.4998 0.3975 0.4898 0.3971 0.4955 0.4054 0.5101 0.4161 D 0.4955 0.4054 0.4941 0.4156 0.4921 0.4156 0.4798 0.3967 0.4898 0.3971 E 0.5088 0.4249 0.4941 0.4156 0.4973 0.4157 0.5061 0.4210 F 0.5088 0.4249 0.5101 0.4161 0.5068 0.4160 0.5061 0.4210 G 0.5101 0.4161 0.4955 0.4054 0.4981 0.4093 0.5068 0.4158 H 0.4981 0.4093 0.4973 0.4157 0.4941 0.4156 0.4955 0.4054 A 0.4675 0.4285 0.4561 0.4259 0.4467 0.4076 0.4491 0.4081 0.4637 0.4212 B 0.4675 0.4285 0.4811 0.4315 0.4698 0.4123 0.4663 0.4115 0.4637 0.4212 C 0.4698 0.4123 0.4591 0.3941 0.4482 0.3917 0.4517 0.3984 0.4663 0.4115 D 0.4517 0.3984 0.4491 0.4081 0.4467 0.4076 0.4372 0.3892 0.4482 0.3917 E 0.4637 0.4212 0.4491 0.4081 0.4526 0.4088 0.4613 0.4166 F 0.4637 0.4212 0.4663 0.4115 0.4628 0.4108 0.4613 0.4166 G 0.4663 0.4115 0.4517 0.3984 0.4541 0.4030 0.4628 0.4108 H 0.4541 0.4030 0.4526 0.4088 0.4491 0.4081 0.4517 0.3984 A 0.4418 0.4211 0.4302 0.4171 0.4226 0.3995 0.4246 0.4002 0.4393 0.4153 B 0.4418 0.4211 0.4561 0.4259 0.4465 0.4073 0.4432 0.4062 0.4393 0.4153 C 0.4465 0.4073 0.4372 0.3892 0.4261 0.3856 0.4285 0.3911 0.4432 0.4062 D 0.4285 0.3911 0.4246 0.4002 0.4226 0.3995 0.4149 0.3819 0.4261 0.3856 E 0.4393 0.4153 0.4246 0.4002 0.4283 0.4014 0.4371 0.4105 F 0.4393 0.4153 0.4432 0.4062 0.4395 0.4050 0.4371 0.4105 G 0.4432 0.4062 0.4285 0.3911 0.4307 0.3960 0.4395 0.4050 H 0.4307 0.3960 0.4283 0.4014 0.4246 0.4002 0.4285 0.3911 A 0.4131 0.4093 0.4003 0.4034 0.3949 0.3871 0.3977 0.3883 0.4118 0.4054 B 0.4131 0.4093 0.4302 0.4171 0.4227 0.3997 0.4177 0.3975 0.4118 0.4054 C 0.4227 0.3997 0.4149 0.3819 0.4022 0.3763 0.4036 0.3804 0.4177 0.3975 D 0.4036 0.3804 0.3977 0.3883 0.3949 0.3871 0.3895 0.3707 0.4022 0.3763 E 0.4118 0.4054 0.3977 0.3883 0.4017 0.3902 0.4102 0.4004 F 0.4118 0.4054 0.4177 0.3975 0.4137 0.3956 0.4102 0.4004 G 0.4177 0.3975 0.4036 0.3804 0.4052 0.3854 0.4137 0.3956 H 0.4052 0.3854 0.4017 0.3902 0.3977 0.3883 0.4036 0.3804   3500 K 2 9 | Version 1.1 | 2022-11-02 GW QSLMS2.EM DATASHEET 4000 K 5000 K 5700 K 0.3853 0.3947 0.3737 0.3879 0.3704 0.3731 0.3714 0.3737 0.3845 0.3913 B 0.3853 0.3947 0.4003 0.4034 0.3949 0.3871 0.3922 0.3855 0.3845 0.3913 C 0.3949 0.3871 0.3895 0.3707 0.3783 0.3645 0.3791 0.3679 0.3922 0.3855 D 0.3791 0.3679 0.3714 0.3737 0.3704 0.3731 0.3671 0.3583 0.3783 0.3645 E 0.3845 0.3913 0.3714 0.3737 0.3756 0.3760 0.3834 0.3866 F 0.3845 0.3913 0.3922 0.3855 0.3880 0.3832 0.3834 0.3866 G 0.3922 0.3855 0.3791 0.3679 0.3802 0.3726 0.3880 0.3832 H 0.3802 0.3726 0.3756 0.3760 0.3714 0.3737 0.3791 0.3679 A 0.3452 0.3678 0.3375 0.3619 0.3372 0.3528 0.3451 0.3648 B 0.3452 0.3678 0.3550 0.3752 0.3532 0.3614 0.3530 0.3612 0.3451 0.3648 C 0.3532 0.3614 0.3514 0.3480 0.3440 0.3426 0.3441 0.3454 0.3530 0.3612 D 0.3441 0.3454 0.3369 0.3445 0.3366 0.3372 0.3440 0.3426 E 0.3451 0.3648 0.3372 0.3528 0.3371 0.3496 0.3396 0.3514 0.3449 0.3609 F 0.3451 0.3648 0.3530 0.3612 0.3496 0.3588 0.3449 0.3609 G 0.3530 0.3612 0.3441 0.3454 0.3443 0.3493 0.3496 0.3588 H 0.3443 0.3493 0.3396 0.3514 0.3371 0.3496 0.3369 0.3445 0.3441 0.3454 A 0.3280 0.3539 0.3205 0.3475 0.3212 0.3373 0.3283 0.3502 B 0.3280 0.3539 0.3375 0.3619 0.3370 0.3493 0.3363 0.3486 0.3283 0.3502 C 0.3370 0.3493 0.3366 0.3372 0.3294 0.3314 0.3291 0.3348 0.3363 0.3486 D 0.3291 0.3348 0.3215 0.3337 0.3221 0.3255 0.3294 0.3314 E 0.3283 0.3502 0.3212 0.3373 0.3213 0.3365 0.3242 0.3388 0.3284 0.3471 F 0.3283 0.3502 0.3363 0.3486 0.3332 0.3462 0.3284 0.3471 G 0.3363 0.3486 0.3291 0.3348 0.3290 0.3379 0.3332 0.3462 H 0.3291 0.3348 0.3215 0.3337 0.3213 0.3365 0.3242 0.3388 0.3290 0.3379 A 0.3102 0.3379 0.3027 0.3310 0.3047 0.3214 0.3054 0.3220 0.3110 0.3340 B 0.3102 0.3379 0.3205 0.3475 0.3213 0.3363 0.3192 0.3344 0.3110 0.3340 C 0.3213 0.3363 0.3221 0.3255 0.3144 0.3187 0.3136 0.3224 0.3192 0.3344 D 0.3136 0.3224 0.3054 0.3220 0.3047 0.3214 0.3067 0.3118 0.3144 0.3187 E 0.3110 0.3340 0.3054 0.3220 0.3082 0.3245 0.3115 0.3317 F 0.3110 0.3340 0.3192 0.3344 0.3165 0.3319 0.3115 0.3317 G 0.3192 0.3344 0.3136 0.3224 0.3131 0.3247 0.3165 0.3319 H 0.3136 0.3224 0.3054 0.3220 0.3082 0.3245 0.3131 0.3247   6500 K A 10 | Version 1.1 | 2022-11-02 GW QSLMS2.EM DATASHEET Group Name on Label  Example: H2-35-1U Brightness Color Chromaticity H2 35   11 | Version 1.1 | 2022-11-02 Forward Voltage 1U GW QSLMS2.EM DATASHEET Relative Spectral Emission 6) Φrel = f (λ); IF = 65 mA; TJ = 25 °C Φrel GW QSLMS2.EM 1,0 : Vλ : white 0,8 0,6 0,4 0,2 0,0 250 300 350 Radiation Characteristics 400 450 500 550 600 650 700 750 800 λ / nm 6) Irel = f (ϕ); TJ = 25 °C GW QSLMS2.EM ϕ/°  -40° -50° -20° -10° 0° 10° 20° 30° 40° 50° 60° 70° 80° 90° 1,0 -30° 0,8 0,6 -60° -70° 0,4 -80° 0,2 -90° 0,0  -100° 12 | Version 1.1 | 2022-11-02 Irel GW QSLMS2.EM DATASHEET Forward current Relative Luminous Flux 6) IF = f(VF); TJ = 25 °C IF / A 6), 7) Φv/Φv(65 mA) = f(IF); TJ = 25 °C GW QSLMS2.EM ΦV GW QSLMS2.EM 200 ΦV(65A) 3,0 180 2,5 160 140 2,0 120 1,5 100 80 1,0 60 0,5 40 Chromaticity Coordinate Shift 6) ΔCx, ΔCy = f(IF); TJ = 25 °C ∆Cx ∆Cy GW QSLMS2.EM 0,03 : ∆ Cx : ∆ Cy  0,02 0,01 0,00 -0,01 -0,02 20 0 16 0 12 0 80 40 60 10 -0,03  IF / A 13 | Version 1.1 | 2022-11-02 20 0 2,9 3,0 VF / V 16 0 2,8 12 0 2,7 40 60 80 0,0 2,6 10 20 10 2,5 IF / A GW QSLMS2.EM DATASHEET Forward Voltage Relative Luminous Flux 6) ΔVF = VF - VF(25 °C) = f(Tj); IF = 65 mA ∆VF / V Φv/Φv(25 °C) = f(Tj); IF = 65 mA GW QSLMS2.EM 0,3 Φv GW QSLMS2.EM 1,2 Φv(25°C) 0,2 1,0 0,1 0,8 0,0 0,6 -0,1 0,4 -0,2 0,2 -0,3 -40 -20 0 20 40 60 80 100 Tj / °C Chromaticity Coordinate Shift 6) ΔCx, ΔCy = f(Tj); IF = 65 mA ∆Cx ∆Cy 6) GW QSLMS2.EM 0,015 : ∆ Cx : ∆ Cy  0,010 0,005 0,000 -0,005 0 20  -0,010 -40 -20 14 | Version 1.1 | 2022-11-02 40 60 80 100 Tj / °C 0,0 -40 -20 0 20 40 60 80 100 Tj / °C GW QSLMS2.EM DATASHEET Max. Permissible Forward Current IF = f(T) IF / mA GW QSLMS2.EM 220 200 180 160 140 120 100 80 60 40 20 0 Don't use below 10 mA 0 20 40 60   15 | Version 1.1 | 2022-11-02 80 100 Ts / °C GW QSLMS2.EM DATASHEET Dimensional Drawing 8) Further Information: Approximate Weight: 20.0 mg Package marking: Cathode   16 | Version 1.1 | 2022-11-02 GW QSLMS2.EM DATASHEET Recommended Solder Pad 8) For superior solder joint connectivity results we recommend soldering under standard nitrogen atmosphere. Package not suitable for ultra sonic cleaning.   17 | Version 1.1 | 2022-11-02 GW QSLMS2.EM DATASHEET Reflow Soldering Profile Product complies to MSL Level 3 acc. to JEDEC J-STD-020E OHA04525 300 ˚C T 250 Tp 245 ˚C 240 ˚C tP 217 ˚C 200 tL 150 tS 100 50 25 ˚C 0 0 50 100 150 200 250 s 300 t Profile Feature Symbol Pb-Free (SnAgCu) Assembly Minimum Recommendation Maximum Ramp-up rate to preheat*) 25 °C to 150 °C tS Time tS TSmin to TSmax Ramp-up rate to peak*) TSmax to TP Liquidus temperature  60 2 3 100 120 2 3 Unit K/s s K/s TL 217 Time above liquidus temperature tL 80 100 s Peak temperature TP 245 260 °C Time within 5 °C of the specified peak temperature TP - 5 K tP 20 30 3 6 Ramp-down rate* TP to 100 °C 10 Time 25 °C to TP  All temperatures refer to the center of the package, measured on the top of the component * slope calculation DT/Dt: Dt max. 5 s; fulfillment for the whole T-range 18 | Version 1.1 | 2022-11-02 °C 480 s K/s s GW QSLMS2.EM DATASHEET Taping 8)   19 | Version 1.1 | 2022-11-02 GW QSLMS2.EM DATASHEET Tape and Reel 9) Reel Dimensions A 180 mm W Nmin 8 + 0.3 / - 0.1 mm   20 | Version 1.1 | 2022-11-02 W1 60 mm W2 max 8.4 + 2 mm 14.4 mm Pieces per PU 4000 GW QSLMS2.EM DATASHEET Barcode-Product-Label (BPL) Dry Packing Process and Materials Moisture-sensitive label or print L E E V l e be sela ). k, H de L If an bl r co ba (R id m ity . H R hu 0% e e /6 tiv ˚C la ared ag ck re fr 30 _ < in pa % k of to 90 rs ea s d ). rs ou or te (p on rs H de , ou iti H an bjec ng ou rs co ˚C 72 si nd H ou 5 te 48 ˚C su es e H co ± 24 6 da e y 40 be oc tim ˚C e or < ith tim ill pr). or ct w O w nt 23 tim e at lo or fa M TO F s al tim at le ˚C at lo at or e. P th F l tic th va lo or ur O F lo s ui on be if: read en w ed l 4 5 F m la ce eq id lo g, n oc l ve vi 5a is in or be 24 de pr ve l 6 Le de , nt whe e te co g: , w e Le ve l ke r ou se da ba ed flo ur e Le ve m % ba e ba al st ur e Le r en re ed e re> 10 oi st e e fo tim ur se al op fo M se oi st ur as k, is or . 33 se is M oi st bed k, lo H an , g ph -0 M oi in an in F R ng ar rbl D M e ba T r po If bl ith % lif ki r C. (if S is p. w ea r ks lf J10 ba to et th va Y ea m rs m _ r w, < he ed 1 ee te Y d, EC iredicat S fte at nt > 1 W Hou D A flody qu In no ire 1. d e ou 4 8 re reity is qu/JE re 2. bo e M tim to es id 2b re C 16 : e a) S tim is IP ic ed loor tim e b) ev Humor or e en F tim lo or D 2a king nc te F op a) lo or 3. b) ba re F lo da e fe l 1 2 F If al re tim ve l 4. se d l 2a ve Le 3 an ve l ag e Le e B ve ur e Le at st ur e Le D oi st ur e M oi st ur M oi st M oi M N E RS s in IV O IT T S C nta N U TIO U coSEND Ais bUagRMEICO T E CThIS S d Barcode label < M RA OS  Humidity indicator Barcode label Please check the HIC immidiately after bag opening. Discard if circles overrun. Avoid metal contact. Do not eat. Comparator check dot WET If wet, examine units, if necessary bake units 15% If wet, examine units, if necessary bake units 10% 5% If wet, parts still adequately dry. change desiccant Humidity Indicator MIL-I-8835 Desiccant AM OSR  OHA00539 21 | Version 1.1 | 2022-11-02 GW QSLMS2.EM DATASHEET Notes The evaluation of eye safety occurs according to the standard IEC 62471:2006 (photo biological safety of lamps and lamp systems). Within the risk grouping system of this IEC standard, the device specified in this data sheet fall into the class moderate risk (exposure time 0.25 s). Under real circumstances (for exposure time, conditions of the eye pupils, observation distance), it is assumed that no endangerment to the eye exists from these devices. As a matter of principle, however, it should be mentioned that intense light sources have a high secondary exposure potential due to their blinding effect. When looking at bright light sources (e.g. headlights), temporary reduction in visual acuity and afterimages can occur, leading to irritation, annoyance, visual impairment, and even accidents, depending on the situation. Subcomponents of this device contain, in addition to other substances, metal filled materials including silver. Metal filled materials can be affected by environments that contain traces of aggressive substances. Therefore, we recommend that customers minimize device exposure to aggressive substances during storage, production, and use. Devices that showed visible discoloration when tested using the described tests above did show no performance deviations within failure limits during the stated test duration. Respective failure limits are described in the IEC60810. This device is designed for specific/recommended applications only. Please consult OSRAM Opto Semiconductors Sales Staff in advance for detailed information on other non-recommended applications (e.g. automotive). Change management for this component is aligned with the requirements of the lighting market. For further application related information please visit www.osram-os.com/appnotes   22 | Version 1.1 | 2022-11-02 GW QSLMS2.EM DATASHEET Disclaimer Attention please! The information describes the type of component and shall not be considered as assured characteristics. Terms of delivery and rights to change design reserved. Due to technical requirements components may contain dangerous substances. For information on the types in question please contact our Sales Organization. If printed or downloaded, please find the latest version on our website. Packing Please use the recycling operators known to you. We can also help you – get in touch with your nearest sales office. By agreement we will take packing material back, if it is sorted. You must bear the costs of transport. For packing material that is returned to us unsorted or which we are not obliged to accept, we shall have to invoice you for any costs incurred. Product and functional safety devices/applications or medical devices/applications Our components are not developed, constructed or tested for the application as safety relevant component or for the application in medical devices. Our products are not qualified at module and system level for such application. In case buyer – or customer supplied by buyer – considers using our components in product safety devices/ applications or medical devices/applications, buyer and/or customer has to inform our local sales partner immediately and we and buyer and /or customer will analyze and coordinate the customer-specific request between us and buyer and/or customer.   23 | Version 1.1 | 2022-11-02 GW QSLMS2.EM DATASHEET Glossary 1) Brightness: Brightness values are measured during a current pulse of typically 10 ms, with a tolerance of +/- 5%. 2) Reverse Operation: Not designed for reverse operation. Continuous reverse operation can cause migration and damage of the device. 3) Forward Voltage: The Forward voltage is measured during a current pulse duration of typically 1 ms with a tolerance of ± 0.05V . 4) Color reproduction index: Color reproduction index values (CRI-RA) are measured during a current pulse of typically 10 ms and with a tolerance of ±2. And CRI-R9 are measured during a current pulse of typically 10 ms and the 4000K with a tolerance of ±6. 5) Chromaticity coordinate groups: Chromaticity coordinate groups are measured during a current pulse duration of typically 10ms with a tolerance of ±0.005. 6) Typical Values: Due to the special conditions of the manufacturing processes of semiconductor devices, the typical data or calculated correlations of technical parameters can only reflect statistical figures. These do not necessarily correspond to the actual parameters of each single product, which could differ from the typical data and calculated correlations or the typical characteristic line. If requested, e.g. because of technical improvements, these typ. data will be changed without any further notice. 7) Characteristic curve: In the range where the line of the graph is broken, you must expect higher differences between single devices within one packing unit. 8) Tolerance of Measure: Unless otherwise noted in drawing, tolerances are specified with ±0.1 and dimensions are specified in mm. 9) Tape and Reel: All dimensions and tolerances are specified acc. IEC 60286-3 and specified in mm.   24 | Version 1.1 | 2022-11-02 GW QSLMS2.EM DATASHEET Revision History Version Date Change 1.0 2022-10-07 Initial Version 1.1 2022-10-31 Notes   25 | Version 1.1 | 2022-11-02 GW QSLMS2.EM DATASHEET   Published by ams-OSRAM AG Tobelbader Strasse 30, 8141 Premstaetten, Austria Phone +43 3136 500-0 ams-osram.com © All rights reserved 26 | Version 1.1 | 2022-11-02