1.5V Solar Garden Light with Enhanced Features The 4V level ensures that the battery is never overcharged (at 4.2V) and this also allows the circuit charge the battery without a constant current supply. If a 3.7V Li-Ion battery is used, make sure to adjust the 10K preset to achieve precisely 4V across the output points where the battery is supposed to be connected, do this adjustment without connecting the battery. The following circuit show how this may be done by adding a simple voltage follower regulator circuit: The circuit can be modified in many different ways. The next morning, the cycle repeats all over again.
Solar dusk to dawn lights full#
With complete absence of sun light or when its completely dark, the transistor conducts fully with the help of the 1K resistor, and produces full brightness over the LEDs. However when dusk sets in the solar voltage begins to drop, and when it drops below the zener diode rating, the transistor slowly starts conducting, illuminating the LEds gradually. The resistor also serves as the current limiting resistor for the connected LEDs when the transistor is switched ON.Īs long as the solar panel generates the optimal amount of power, the positive potential at the base of the transistor keeps it switched OFF. The resistor R* value should be adjusted as per the specs of the battery for limiting excessive current to it. This voltage charges the battery gradually from dawn to dusk. The transistor is the only active component which is positioned as a switch for preventing the battery voltage from reaching the connected LEDs during day time.ĭuring broad day light, the solar panel produces the required amount of voltage which is applied across the rechargeable battery via the 1N4007 diode and the resistor R*. 【What you get】SunBonar Dual-head 70LED Solar Flood Light, 22 Watts solar panel with 2pcs*16.The circuit design is extremely straightforward and may be understood with the following points:Īs can be seen in the given circuit diagram, the design basically consists of a solar panel, a PNP transistor, few LEDs, a battery and a few resistors. 【Sturdy-Made & IP67 Protection】IP67-rated waterproofing with all-in-one sturdy aluminum casing, allows SunBonar solar flood lights outdoor with remote provide night lighting for optimal performance year-round and in all climates. 【Long-Lasting & Smart Remote Control】①With effective 22W mono-silicone solar panel, the solar flood light even works on cloudy days ②With ALS3.0 new technology, the flood light turns on at sunset and goes off at sunrise automatically under auto mode ③With new smart remote control, athe lighting brightness & hours can be adjustable by pressing remote as your needs. With 6000K-6500K cool white dusk to dawn solar lights, your family enjoy happy sunset time in your backyard.
【Outdoor & Indoor Available】 SunBonar dual head 70LED solar flood light can be widely used to light up outdoor & indoor area: front door, house surround, yard, pathway, pool, patio, shed, sign, barn, garden, garage, driveway etc.
The solar panel and flood light are both easy to set up, put the solar panel on the roof and attach 2 flood lights with 2 cable (16.4ft) to light up house, shed or barn area. 【Dual Head Available】Equipped with dual head flood lights, make them available for both outdoor & indoor lighting at the same time, installed together to Illuminate outdoor or indoor area or separate them to different places as per your needs.
0 kommentar(er)
