J2 Solar

Solar LED Product

SCLED-12V1A

A simple low cost solar panel battery charge control that has built in photo switch function to provide dusk to dawn lighting control. When the panel voltage increases with ambient light levels the controller shuts the output off to the lighting load. Great for small solar panel LED Lighting systems, well suited for 5, 8, 10, 15 and 18 watt solar panels.  Use with SLA (Sealed Lead Acid) storage battery. See the specification sheet below for details.

Spec sheet: SCLED(1A).pdf

Setup guide: Quick Setup Guide.pdf

SCLED-12V3A

The SCLED-12V3A is a medium wattage version of our SCLED-12V1A, providing control for 12 volt DC LED Lighting loads up to 36 watts maximum. Great for small solar panel LED Lighting systems, well suited for 12 volt solar panels up to 40 watts. Use with a SLA (Sealed Lead Acid) storage battery.

Spec sheet: SCLED(3A).pdf

Setup guide: Quick Setup Guide.pdf


Comparison of our analog electronic dusk to dawn solar panel charge controllers
J2 LED Lighting P/N Max. Solar Panel Watts Typical LED Lighting Load Watts at 12 volts Maximum LED Lighting Load Watts at 12 volts Maximum Battery Fuse Amps
SCLED-12V1A 18 6 12 1
SCLED-12V3A 40 18 36 3

Comparison of our analog electronic dusk to dawn solar panel charge controllers
J2 LED Lighting P/N Typical battery over voltage charge shut off Typical battery under voltage LED load shut off Typical panel voltage for dawn LED load shut off Typical panel voltage for dusk LED load turn on
SCLED-12V1A 14.4 VDC 10.5 VDC > 4.0 VDC < 4.0 VDC
SCLED-12V3A 14.4 VDC 10.5 VDC > 4.0 VDC < 4.0 VDC

Generalized watts to amps for 12 volt DC system low and medium power solar panels, full sun load chart
Nominal Solar Panel Watts Maximum operating Output Amp Typical operating Output Amps Minimum operating Output Amps
5 0.29 0.26 0.23
8 0.47 0.42 0.37
10 0.59 0.53 0.46
15 0.88 0.79 0.69
18 1.06 0.95 0.83
20 1.18 1.05 0.93
30 1.76 1.58 1.39
40 2.35 2.10 1.85

Generalized voltages 12 volt DC system Solar Panel chart
Volts DC Typical Ranges
Open Circuit full sun load 21.5 VDC 21.7 VDC
Full electrical load, full sun load 16.9 VDC 17.1 VDC
Battery System voltage (Sealed Lead Acid, SLA) 12.0 VDC 14.4 VDC