Guangdong, China
Business Type:
Manufacturer/Factory, Trading Company
OEM/ODM Service
Sample Available

Solar Controller, Controller, Solar Charge Controller manufacturer / supplier in China, offering Waterproof 12V/24V 20A Solar Street Light Charge Controller (QW-SR-SL2420), Wall-Mounted Inbuilt PWM Solar Controller 1000va Solar Power Inverter (QW-1kVA1250), 12V 5A PWM Waterproof Solar Street Light Charge Controller with LED Driver (QW-SR-DH20) and so on.

Gold Member Since 2013

Waterproof 12V/24V 20A Solar Street Light Charge Controller (QW-SR-SL2420)

Get Latest Price
Min. Order / Reference FOB Price
50 Pieces US $22.69/ Piece
Port: Guangzhou, China
Production Capacity: 20000 Units/Month
Payment Terms: T/T, Western Union, Money Gram, credit card
Condition: New
Certification: CE
Application: Solar System Controller, Charger Controller, Lighting Controller, Solar Working Station, Voltage Controller
Rated Voltage: Auto 12V/24V
System Voltage: Auto 12V/24V
System Current: 20A

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Basic Info

Model NO.: QW-SR-SL2420
Control Mode: PWM
No-Load Loss: 10mA
Indication: LED Digital Display
Solar Energy Input Voltage: 17V
Waterproof Level: IP68
Overvoltage Protection: 12V
Size: 82X100X20 (mm)
Weight: 0.3kg
Transport Package: Paper Box / Unit
Specification: CE, SGS, ROHS
Origin: Guangzhou, China
HS Code: 9032899090

Product Description

Waterproof 12V/24V 20A Solar Street light Charge Controller(QW-SR-SL2420)

Product Feature
Waterproof 12V/24V 20A Solar Street Light Charge Controller (QW-SR-SL2420)
1. The design of IP68 waterproof level and aluminum shell helps effectively prevent erosion. 
2. 12 V/24 V system voltage.
3. LED numeric display and waterproof keys are easy to use.
4. An upgraded 3-stage PWM charging algorithm applies an equalizing charge to the battery every week, effectively preventing the battery from non-equalization and sulfuration and therefore extending the battery's service life.
5. Up to 5 load working modes facilitate the product's application to different types of road lamps and monitoring devices.
6. Charging program options are available for sealed, GEL and flooded lead-acid batteries and ternary-material lithium and lithium iron phosphate batteries. 
7. An external temperature sensor helps deliver high-precision temperature compensation. 
8. Parameter settings of power-down saving functions eliminate the trouble of repeated settings, making operation easy and convenient. 
9. Various kinds of state indicators. 
10. Overcharge, over-discharge and overload protection, as well as short-circuit and reverse-connection protection.
11. TVS lighting protection.

Battery typeSealedGELFloodedTernary-material lithiumLithium iron phosphate
System current10 A; 20 A
No-load loss10 mA/ 12 V; 13 mA/ 24 V
Solar energy input voltage< 55 V
System voltage12 V/ 24 V Auto12 V/ 24 V Auto12 V/ 24 V Auto3 and 4 strings: 12 V system 
7 strings: 24 V system
4 strings: 12 V system 
8 strings: 24V system
Overvoltage protection17.0 V17.0 V17.0 V4.2 V * N + 2.0 V3.65 V * N + 2.0 V
Equalizing charging voltage14.6 V-14.6 V--
Boost charging voltage14.4 V14.2 V14.4 V--
Floating charging voltage13.8 V    13.8 V13.8 V      --
Overcharge voltage-     --4.2 V * N3.65 V * N
Overcharge recovery-     --3.9 V * N3.4 V * N
Boost charging recovery voltage13.2 V13.2 V13.2 V--
Over-discharge recovery voltage12.5 V12.5 V12.5 V3.3 V * N3.0 V * N
Undervoltage12.0 V12.0 V12.0 V3.2 V * N2.8 * N
Over-discharge voltage11.0 V11.0 V11.0 V3.0 V * N2.5 V * N
Temperature compensation-4.0 mv°C/ 2 V-4.0 mv°C/ 2 V-4.0 mv°C/ 2 V--
Equalizing charging duration1 hour-1 hour--
Boost charging duration4 hours-4 hours--
Light controlled voltageLight controlled on 5 V, light controlled off 6 V
Light control judgment time1 min
Overload and short-circuit protection1.25 times of rated current: 30 s; 
1.5 times of rated current: 5 s of overload protection;
Over 3 times of rated current: short-circuit protection.
Operating temperature-35°C to +65°C;
Protection degreeIP68
Weight140 g (10 A)             300 g (20 A)
Dimensions82×58×20 (mm)/ 10 A; 82×100×20 (mm)/ 20 A
LED DisplayMode LED DisplayMode
0Purely light-operated9Light-operated + time-controlled for 9 hours
1Light-operated + time-controlled for 1 hour0Light-operated + time-controlled for 10 hours
2Light-operated + time-controlled for 2 hours1Light-operated + time-controlled for 11 hours
3Light-operated + time-controlled for 3 hours2Light-operated + time-controlled for 12 hours
4Light-operated + time-controlled for 4 hours3Light-operated + time-controlled for 13 hour
5Light-operated + time-controlled for 5 hours4Light-operated + time-controlled for 14 hours
6Light-operated + time-controlled for 6 hours5Manual mode
7Light-operated + time-controlled for 7 hours6Debug mode
8Light-operated + time-controlled for 8 hours7Long-term On mode

Status indications
Waterproof 12V/24V 20A Solar Street Light Charge Controller (QW-SR-SL2420)

Waterproof 12V/24V 20A Solar Street Light Charge Controller (QW-SR-SL2420)

Product Pictures
Waterproof 12V/24V 20A Solar Street Light Charge Controller (QW-SR-SL2420)

Waterproof 12V/24V 20A Solar Street Light Charge Controller (QW-SR-SL2420)
Waterproof 12V/24V 20A Solar Street Light Charge Controller (QW-SR-SL2420)
Payment Terms:

T/T, Western Union, Money Gram
Production arranged after receipt of payment.

Lead Time:
Sample order will be delivered within 7 working days.
Order quantity below 100PCS, delivery time is 7-15 working days.
Container order will be delivered within 15-30 working days.

Courier: FedEx, DHL, TNT, UPS, Aramex, EMS ect.
Forwarder: By sea / air or Customer designated

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