Are you looking for a solar security light?
I have designed one, that includes the constant LED driver, still trying to finish off the marketing material.
The specs are as follows:
15W (1800Lumens) Security light IP65 Rectangular type 12V DC (True constant current, which means that the voltage can vary from 10 to 30V DC and the LEDs will be fed with a constant current - so no change in power drawn or intensity change with change in voltage supply)
125W Solar panel
Solar Panel 100mm Pole powder coated bracket complete with nuts and bolts
Orange box 300x250x200mm orange enclosure with stainless steel pole brackets
40A Lithium battery
Solar Charger & controller with day light switch.
My preliminary price is around R11K ex VAT
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