ESM-680S840MGS

ESM-680SxxxMGS 680W Programmable Driver with INV Digital Dimming Rev.A Features  Ultra High Efficiency (Up to 96.0%)  Full Power at Wide Output Current Range (Constant Power)  Adjustable Output Current (AOC) with Programmability  Isolated 0-10V/PWM/3-Timer-Modes Dimmable  INV Digital Dimming, UART Based Communication Protocol  Dim-to-Off with Low Standby Power  Minimum Dimming Level with 5% or 10% Selectable  Maximum Dimming Level with 9V or 10V Selectable  Fade Time Adjustable  Always-on Auxiliary Power: 12Vdc, 250mA  Low inrush current  Output Lumen Compensation  End-of-Life Indicator  Input Surge Protection: DM 6kV, CM 10kV  All-Around Protection: IUVP, IOVP, OVP, SCP, OTP   IP66 / IP67 and UL Dry / Damp / Wet Location TYPE HL, for use in a Class I, Division 2 hazardous (Classified) location 5 Years Warranty  Description The ESM-680SxxxMGS series is a 680W, constant-current, programmable and IP66/IP67 rated LED driver that operates from 249-528 Vac input with excellent power factor. Created for many lighting applications including high mast, sports, UV-LED, aquaculture and horticulture, etc. It provides an auxiliary voltage and dim-to-off functionality for powering low voltage, wireless controls. The dimming control supports 0-10V dimming as well as two-way communication via Digital Dimming, a UART based communication protocol. The high efficiency of these drivers and compact metal case enables them to run cooler, significantly improving reliability and extending product life. To ensure trouble-free operation, protection is provided against input surge, input under voltage, input over voltage, output over voltage, short circuit, and over temperature. Models Adjustable Full-Power Default Output Current Output Current Range(1) Current Range Input Voltage Range(2) Output Voltage Range Typical Max. Typical Power Factor Output Efficiency Power (3) 277Vac 480Vac Model Number 0.125-1.7A 1.25-1.7A 1.7 A 249~528Vac 200 ~ 544Vdc 680 W 352~500Vdc 96.0% 0.99 0.96 ESM-680S170MGS 0.18-2.4A 1.8-2.4A 2.1 A 249~528Vac 141.5 ~ 378Vdc 680 W 352~500Vdc 95.5% 0.99 0.96 ESM-680S240MGS 0.26-3.5A 2.6-3.5A 3.5 A 249~528Vac 97.1 ~ 262Vdc 680 W 352~500Vdc 95.5% 0.99 0.96 ESM-680S350MGS 0.42-5.6A 4.2-5.6A 5.6 A 249~528Vac 60.7 ~ 163Vdc 680 W 352~500Vdc 95.5% 0.99 0.96 ESM-680S560MGS 0.63-8.4A 6.3-8.4A 8.4 A 249~528Vac 40.4 ~ 108Vdc 680 W 352~500Vdc 95.5% 0.99 0.96 ESM-680S840MGS(4) 249~528Vac 22.6 ~ 54Vdc 352~500Vdc 94.5% 0.99 0.96 ESM-680S15AMGS(4) 1.26-15.0A 12.6-15.0A 15.0 A 1 / 17 Specifications are subject to changes without notice. www.inventronics-co.com Tel: 86-571-56565800 680 W All specifications are typical at 25C unless otherwise stated. Fax: 86-571-86601139 sales@inventronics-co.com ESM-680SxxxMGS 680W Programmable Driver with INV Digital Dimming Rev.A Notes: (1) Output current range with constant power at 680W. (2) Certified voltage range: UL, FCC 277-480Vac; otherwise 277-400Vac. (3) Measured at 100% load and 480Vac input (see below “General Specifications” for details). (4) SELV output I-V Operating Area ESM-680S170MGS ESM-680S240MGS 456 660 (125,544) (750,544) (180,378) (1250,544) 440 10 0% (1700,400) ad (1700,240) 220 (170,200) 110 (1700,200) (Ioset,200) Good Performance Area Allowed Operating Area Programmed Operating Area 340 1360 (Ioset,680/Ioset) (10%Ioset,680/Ioset) 304 228 680 1020 1700 (2400,170) (2400,141.5) (Ioset,141.5) (240,141.5) 0 2040 Good Performance Area Allowed Operating Area Programmed Operating Area 480 1920 960 1440 2400 Output Current (mA) Output Current (mA) Note: 1250mA≤Ioset≤1700mA Note: 1800mA≤Ioset≤2400mA ESM-680S350MGS 2880 ESM-680S560MGS 312 198 (1560,262) (2600,262) (10%Ioset,680/Ioset) 10 208 60 %L 156 oa 0% Lo ad (3500,194) d 104 (350,97.1) 52 165 (Ioset,680/Ioset) (Ioset,97.1) (3500,116.5) (3500,97.1) Good Performance Area Allowed Operating Area Programmed Operating Area 700 2800 Output Voltage(V) (260,262) 260 Output Voltage(V) (2400,283.5) ad 0 0 (420,163) (2520,163) (4200,163) (Ioset,680/Ioset) 100 (10%Ioset,680/Ioset) 132 60 %L 99 66 % Lo ad (5600,121.5) oad (560,60.7) 33 0 (5600,73) (5600,60.7) (Ioset,60.7) Programmed Operating Area Good Performance Area Allowed Operating Area 0 0 1400 2100 3500 4200 0 1120 4480 5600 Note: 2600mA≤Ioset≤3500mA Note: 4200mA≤Ioset≤5600mA (3780,108) (6300,108) 100 %L o ad (8400,81) % 60 ad Lo 66 44 (Ioset,40.4) (840,40.4) Good Performance Area Allowed Operating Area (8400,48.5) (8400,40.4) Output Voltage(V) (10%Ioset,680/Ioset) (1260,54) 50 (Ioset,680/Ioset) 88 6720 ESM-680S15AMGS 60 22 3360 Output Current (mA) ESM-680S840MGS (630,108) 2240 Output Current (mA) 132 Output Voltage(V) Lo 152 76 0 110 10 0% ad Lo ad Lo 330 (1800,378) % 60 Lo Output Voltage(V) (10%Ioset,680/Ioset) (1080,378) 380 (Ioset,680/Ioset) % 60 Output Voltage(V) 550 Programmed Operating Area (7560,54) (12600,54) 10 0% (10%Ioset,680/Ioset) 40 60 30 %L oa (Ioset,680/Ioset) Lo ad (15000,45) d (15000,27) (15000,22.6) 20 (1500,22.6) 10 (Ioset,22.6) Good Performance Area Allowed Operating Area Programmed Operating Area 0 0 0 1680 3360 5040 6720 8400 10050 0 3000 6000 9000 12000 Output Current (mA) Output Current (mA) Note: 6300mA≤Ioset≤8400mA Note: 12600mA≤Ioset≤15000mA 2 / 17 Specifications are subject to changes without notice. www.inventronics-co.com Tel: 86-571-56565800 15000 18000 All specifications are typical at 25C unless otherwise stated. Fax: 86-571-86601139 sales@inventronics-co.com ESM-680SxxxMGS 680W Programmable Driver with INV Digital Dimming Rev.A Input Specifications Parameter Min. Typ. Max. Input AC Voltage 249 Vac - 528 Vac Input DC Voltage 352 Vdc - 500 Vdc Input Frequency 47 Hz - 63 Hz - - 0.75 MIU UL8750; 480Vac/ 60Hz 0.70 mA IEC60598-1; 480Vac/ 60Hz,
Leakage Current Notes - - 2.95 A Measured at 100% load and 277 Vac input. - - 1.72 A Measured at 100% load and 480 Vac input. - - 1.55 A2s At 480Vac input, 25℃ cold start, duration= 6.56 ms, 10%Ipk-10%Ipk. See Inrush Current Waveform for the details. 0.90 - - - - 20% Min. Typ. Max. -5%Ioset - 5%Ioset 125 mA 180 mA 260 mA 420 mA 630 mA 1260 mA - 1700 mA 2400 mA 3500 mA 5600 mA 8400 mA 15000 mA 1250 mA 1800 mA 2600 mA 4200 mA 6300 mA 12600 mA - 1700 mA 2400 mA 3500 mA 5600 mA 8400 mA 15000 mA - 5%Iomax 10%Iomax 100% load, 20 MHz BW Output Current Ripple at < 200Hz (pk-pk) - - 2%Iomax 70%-100% load Startup Overshoot Current - - 10%Iomax 100% load No Load Output Voltage ESM-680S170MGS ESM-680S240MGS ESM-680S350MGS ESM-680S560MGS ESM-680S840MGS ESM-680S15AMGS - - 600 V 420 V 300 V 220 V 120 V 60 V Line Regulation - - ±0.5% Load Regulation - - ±3.0% Input AC Current Inrush Current(I2t) PF THD At 277-480Vac, 50-60Hz, 60%-100% Load (408 - 680W) Output Specifications Parameter Output Current Tolerance Output Current Setting(Ioset) Range ESM-680S170MGS ESM-680S240MGS ESM-680S350MGS ESM-680S560MGS ESM-680S840MGS ESM-680S15AMGS Output Current Setting Range with Constant Power ESM-680S170MGS ESM-680S240MGS ESM-680S350MGS ESM-680S560MGS ESM-680S840MGS ESM-680S15AMGS Total Output Current Ripple (pk-pk) 3 / 17 Specifications are subject to changes without notice. www.inventronics-co.com Tel: 86-571-56565800 Notes 100% load 100% load All specifications are typical at 25C unless otherwise stated. Fax: 86-571-86601139 sales@inventronics-co.com ESM-680SxxxMGS 680W Programmable Driver with INV Digital Dimming Rev.A Output Specifications (Continued) Parameter Min. Typ. Max. Notes Turn-on Delay Time - - 0.5 s Measured at 277-480Vac input, 60%-100% Load Temperature Coefficient of Ioset - 0.03%/C - 10.8 V 12 V 13.2 V 0 mA - 250 mA 12V Auxiliary Output Transient Peak Current@6W - - 500 mA 12V Auxiliary Output Transient Peak Current@10W - - 850 mA Min. Typ. Max. 92.5% 92.0% 94.5% 94.0% - 92.0% 91.5% 94.0% 93.5% - 92.5% 92.0% 94.5% 94.0% - 92.0% 91.5% 94.0% 93.5% - 92.0% 91.0% 94.0% 93.0% - 91.5% 91.5% 93.5% 93.5% - 93.5% 92.5% 95.5% 94.5% - 93.0% 92.0% 95.0% 94.0% - 93.5% 92.5% 95.5% 94.5% - 93.0% 92.5% 95.0% 94.5% - 93.0% 92.0% 95.0% 94.0% - 92.0% 92.5% 94.0% 94.5% - 12V Auxiliary Output Voltage(Vaux/12V) 12V Auxiliary Output Source Current Case temperature = 0C ~Tc max Return terminal is “Dim−“ 500mA peak for a maximum duration of 2.2 ms in a 6.0ms period during which time the average should not exceed 250mA. 850mA peak for a maximum duration of 1.3 ms in a 5.2ms period during which time the average should not exceed 250mA. General Specifications Parameter Efficiency at 277 Vac input: ESM-680S170MGS Io= 1250 mA Io= 1700 mA ESM-680S240MGS Io= 1800 mA Io= 2400 mA ESM-680S350MGS Io= 2600 mA Io= 3500 mA ESM-680S560MGS Io= 4200 mA Io= 5600 mA ESM-680S840MGS Io= 6300 mA Io= 8400 mA ESM-680S15AMGS Io= 12600 mA Io= 15000 mA Efficiency at 400 Vac input: ESM-680S170MGS Io= 1250 mA Io= 1700 mA ESM-680S240MGS Io= 1800 mA Io= 2400 mA ESM-680S350MGS Io= 2600 mA Io= 3500 mA ESM-680S560MGS Io= 4200 mA Io= 5600 mA ESM-680S840MGS Io= 6300 mA Io= 8400 mA ESM-680S15AMGS Io= 12600 mA Io= 15000 mA 4 / 17 Specifications are subject to changes without notice. www.inventronics-co.com Tel: 86-571-56565800 Notes Measured at 100% load and steady-state temperature in 25C ambient; (Efficiency will be about 2.0% lower if measured immediately after startup.) Measured at 100% load and steady-state temperature in 25C ambient; (Efficiency will be about 2.0% lower if measured immediately after startup.) All specifications are typical at 25C unless otherwise stated. Fax: 86-571-86601139 sales@inventronics-co.com ESM-680SxxxMGS 680W Programmable Driver with INV Digital Dimming Rev.A General Specifications (Continued) Parameter Min. Typ. Max. 94.0% 93.0% 96.0% 95.0% - 93.5% 92.5% 95.5% 94.5% - 93.5% 93.0% 95.5% 95.0% - 93.5% 92.5% 95.5% 94.5% - 93.5% 92.5% 95.5% 94.5% - 92.5% 92.5% 94.5% 94.5% - Standby Power - 1.5 W - MTBF - 200,000 Hours - - 102,000 Hours - - 50,000 Hours - -40°C - +90°C -40°C - +80°C Case temperature for 5 years warranty Humidity: 10% RH to 95% RH; -40°C - +85°C Humidity: 5%RH to 95%RH Efficiency at 480 Vac input: ESM-680S170MGS Io= 1250 mA Io= 1700 mA ESM-680S240MGS Io= 1800 mA Io= 2400 mA ESM-680S350MGS Io= 2600 mA Io= 3500 mA ESM-680S560MGS Io= 4200 mA Io= 5600 mA ESM-680S840MGS Io= 6300 mA Io= 8400 mA ESM-680S15AMGS Io= 12600 mA Io= 15000 mA Lifetime Operating Case Temperature for Safety Tc_s Operating Case Temperature for Warranty Tc_w Storage Temperature Dimensions Net Weight - 3230 g Measured at 100% load and steady-state temperature in 25C ambient; (Efficiency will be about 2.0% lower if measured immediately after startup.) Measured at 480Vac/50Hz; Dimming off Measured at 480Vac input, 80%Load and 25C ambient temperature (MIL-HDBK217F) Measured at 480Vac input, 80%Load and 70C case temperature; See lifetime vs. Tc curve for the details Measured at 277Vac input, 100%Load and 40C ambient temperature With mounting ear 11.81 × 5.95 x 1.81 300 ×151 x 46 10.83 × 5.95 x 1.81 275 × 151 x 46 Inches (L × W × H) Millimeters (L × W × H) Notes - Dimming Specifications Parameter Absolute Maximum Voltage on the Vdim (+) Pin Source Current on Vdim (+)Pin Min. Typ. Max. -20 V - 20 V 200 uA 300 uA 450 uA 5 / 17 Specifications are subject to changes without notice. www.inventronics-co.com Tel: 86-571-56565800 Notes Vdim(+) = 0 V All specifications are typical at 25C unless otherwise stated. Fax: 86-571-86601139 sales@inventronics-co.com ESM-680SxxxMGS 680W Programmable Driver with INV Digital Dimming Rev.A Dimming Specifications (Continued) Parameter Min. Typ. Max. ESM-680S170MGS ESM-680S240MGS ESM-680S350MGS ESM-680S560MGS ESM-680S840MGS ESM-680S15AMGS 10%Ioset - Ioset ESM-680S170MGS ESM-680S240MGS ESM-680S350MGS ESM-680S560MGS ESM-680S840MGS ESM-680S15AMGS 125 mA 180 mA 260 mA 420 mA 630 mA 1260 mA - Ioset ESM-680S170MGS ESM-680S240MGS ESM-680S350MGS ESM-680S560MGS ESM-680S840MGS ESM-680S15AMGS 5%Ioset - Ioset ESM-680S170MGS ESM-680S240MGS ESM-680S350MGS ESM-680S560MGS ESM-680S840MGS ESM-680S15AMGS 63 mA 90 mA 130 mA 210 mA 315 mA 630 mA - Ioset 0V - 10 V Dim off Voltage 0.35 V 0.5 V 0.65 V Dim on Voltage 0.55 V 0.7 V 0.85 V - 0.2 V - PWM_in High Level 3V - 10 V PWM_in Low Level -0.3 V - 0.6 V PWM_in Frequency Range 200 Hz - 3 KHz PWM_in Duty Cycle 1% - 99% PWM Dimming off (Positive Logic) 3% 5% 8% PWM Dimming on (Positive Logic) 5% 7% 10% PWM Dimming off ( Negative Logic) 92% 95% 97% PWM Dimming on ( Negative Logic) 90% 93% 95% - 2% - Dimming Output Range with 10%-100% (Default) Dimming Output Range with 5%-100% (Settable) Recommended Dimming Input Range Hysteresis Hysteresis Notes 1250 mA ≤ Ioset ≤ 1700 mA 1800 mA ≤ Ioset ≤ 2400 mA 2600 mA ≤ Ioset ≤ 3500 mA 4200 mA ≤ Ioset ≤ 5600 mA 6300 mA ≤ Ioset ≤ 8400 mA 12600 mA ≤ Ioset ≤ 15000 mA 125 mA ≤ Ioset ＜ 1250 mA 180 mA ≤ Ioset ＜1800 mA 260 mA ≤ Ioset ＜ 2600 mA 420 mA ≤ Ioset ＜ 4200 mA 630 mA ≤ Ioset ＜ 6300 mA 1260 mA ≤ Ioset ＜ 12600 mA 1250 mA ≤ Ioset ≤ 1700 mA 1800 mA ≤ Ioset ≤ 2400 mA 2600 mA ≤ Ioset ≤ 3500 mA 4200 mA ≤ Ioset ≤ 5600 mA 6300 mA ≤ Ioset ≤ 8400 mA 12600 mA ≤ Ioset ≤ 15000 mA 125 mA ≤ Ioset ＜ 1250 mA 180 mA ≤ Ioset ＜1800 mA 260 mA ≤ Ioset ＜ 2600 mA 420 mA ≤ Ioset ＜ 4200 mA 630 mA ≤ Ioset ＜ 6300 mA 1260 mA ≤ Ioset ＜ 12600 mA Default 0-10V dimming mode. Dimming mode set to PWM in PC interface. Safety &EMC Compliance Safety Category UL/CUL Standard UL8750,CAN/CSA-C22.2 No. 250.13 ENEC & CE EN 61347-1, EN 61347-2-13 CB IEC 61347-1, IEC 61347-2-13 6 / 17 Specifications are subject to changes without notice. www.inventronics-co.com Tel: 86-571-56565800 All specifications are typical at 25C unless otherwise stated. Fax: 86-571-86601139 sales@inventronics-co.com ESM-680SxxxMGS 680W Programmable Driver with INV Digital Dimming Rev.A Safety &EMC Compliance (Continued) EMI Standards EN 55015(1) Notes Conducted emission Test &Radiated emission Test EN 61000-3-2 Harmonic current emissions EN 61000-3-3 Voltage fluctuations & flicker ANSI C63.4 Class B FCC Part 15(1) 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. EMS Standards Notes EN 61000-4-2 Electrostatic Discharge (ESD): 8 kV air discharge, 4 kV contact discharge EN 61000-4-3 Radio-Frequency Electromagnetic Field Susceptibility Test-RS EN 61000-4-4 Electrical Fast Transient / Burst-EFT EN 61000-4-5 Surge Immunity Test: AC Power Line: Differential Mode 6 kV, Common Mode 10 kV EN 61000-4-6 Conducted Radio Frequency Disturbances Test-CS EN 61000-4-8 Power Frequency Magnetic Field Test EN 61000-4-11 Voltage Dips EN 61547 Electromagnetic Immunity Requirements Applies To Lighting Equipment Note: (1) This LED driver meets the EMI specifications above, but EMI performance of a luminaire that contains it depends also on the other devices connected to the driver and on the fixture itself. Lifetime vs. Case Temperature 7 / 17 Specifications are subject to changes without notice. www.inventronics-co.com Tel: 86-571-56565800 All specifications are typical at 25C unless otherwise stated. Fax: 86-571-86601139 sales@inventronics-co.com ESM-680SxxxMGS 680W Programmable Driver with INV Digital Dimming Rev.A Inrush Current Waveform Efficiency vs. Load ESM-680S170MGS(Io=1250mA) ESM-680S170MGS(Io=1700mA) ESM-680S240MGS(Io=1800mA) ESM-680S240MGS(Io=2400mA) 8 / 17 Specifications are subject to changes without notice. www.inventronics-co.com Tel: 86-571-56565800 All specifications are typical at 25C unless otherwise stated. Fax: 86-571-86601139 sales@inventronics-co.com ESM-680SxxxMGS 680W Programmable Driver with INV Digital Dimming Rev.A ESM-680S350MGS(Io=2600mA) ESM-680S350MGS(Io=3500mA) ESM-680S560MGS(Io=4200mA) ESM-680S560MGS(Io=5600mA) ESM-680S840MGS(Io=6300mA) ESM-680S840MGS(Io=8400mA) 9 / 17 Specifications are subject to changes without notice. www.inventronics-co.com Tel: 86-571-56565800 All specifications are typical at 25C unless otherwise stated. Fax: 86-571-86601139 sales@inventronics-co.com ESM-680SxxxMGS 680W Programmable Driver with INV Digital Dimming Rev.A ESM-680S15AMGS(Io=12600mA) ESM-680S15AMGS(Io=15000mA) Power Factor Total Harmonic Distortion 10 / 17 Specifications are subject to changes without notice. www.inventronics-co.com Tel: 86-571-56565800 All specifications are typical at 25C unless otherwise stated. Fax: 86-571-86601139 sales@inventronics-co.com ESM-680SxxxMGS 680W Programmable Driver with INV Digital Dimming Rev.A Protection Functions Parameter Min. Typ. Max. Notes Over Temperature Protection Decreases output current, returning to normal after over temperature is removed. Short Circuit Protection Auto Recovery. No damage will occur when any output is short circuited. The output shall return to normal when the fault condition is removed. Over Voltage Protection Limits output voltage at no load and in case the normal voltage limit fails. Input Under Voltage Protection (IUVP) Input Over Voltage Protection (IOVP) Input Protection Voltage Input Recovery Voltage Input Over Voltage Protection Input Over Voltage Recovery Max. of Input Over Voltage 220 Vac 230 Vac 240 Vac 230 Vac 240 Vac 250 Vac 550 Vac 570 Vac 590 Vac 530 Vac 550 Vac 570 Vac - - 590 Vac  Input Under Voltage Protection Diagram  Input Over Voltage Protection Diagram 11 / 17 Specifications are subject to changes without notice. www.inventronics-co.com Tel: 86-571-56565800 Turn off the output when the input voltage falls below protection voltage. Auto Recovery. The driver will restart when the input voltage exceeds recovery voltage. Turn off the output when the input voltage exceeds protection voltage. Auto Recovery. The driver will restart when the input voltage falls below recovery voltage. The driver can survive for 8 hours with a stable input voltage stress of 590Vac. All specifications are typical at 25C unless otherwise stated. Fax: 86-571-86601139 sales@inventronics-co.com ESM-680SxxxMGS 680W Programmable Driver with INV Digital Dimming Rev.A Dimming  0-10V Dimming The recommended implementation of the dimming control is provided below. Implementation 1: Positive logic 12 / 17 Specifications are subject to changes without notice. www.inventronics-co.com Tel: 86-571-56565800 All specifications are typical at 25C unless otherwise stated. Fax: 86-571-86601139 sales@inventronics-co.com ESM-680SxxxMGS 680W Programmable Driver with INV Digital Dimming Rev.A Implementation 2: Negative logic Notes: 1. Do NOT connect Dim− to the output V− or V+, otherwise the driver will not work properly. 2. The dimmer can also be replaced by an active 0-10V voltage source signal or passive components like zener. 3. When 0-10V negative logic dimming mode and Dim+ is open, the driver will dim to off and be standby.  PWM Dimming The recommended implementation of the dimming control is provided below. L/L1 Vac Inventronics N/L2 LED Driver V+ VVaux/12V Dim+ Dim- PWM Signal Implementation 3: Positive logic 13 / 17 Specifications are subject to changes without notice. www.inventronics-co.com Tel: 86-571-56565800 All specifications are typical at 25C unless otherwise stated. Fax: 86-571-86601139 sales@inventronics-co.com ESM-680SxxxMGS 680W Programmable Driver with INV Digital Dimming Rev.A V+ L/L1 Vac Inventronics N/L2 LED Driver VVaux/12V Dim+ Dim- PWM Signal Implementation 4: Negative logic Notes: 1. 2. Do NOT connect Dim− to the output V− or V+, otherwise the driver will not work properly. When PWM negative logic dimming mode and Dim+ is open, the driver will dim to off and be standby.  Time Dimming  Output Lumen Compensation Time dimming control includes 3 kinds of modes, they are Self Adapting-Midnight, Self AdaptingPercentage and Traditional Timer.  Self Adapting-Midnight: Automatically adjusts the dimming curve based on the on-time of past two days (if difference