Systellar Innovations manufactures Integrated Solar Street light in 12W, 15W, 20W, 25W, 30W, 40W, 60W and 80W LED power. Integrated Solar Street light consists of a Solar panel and LED luminary with built-in Lithium-ion / Lithium Ferro Phosphate battery (LiFePO4) battery and solar driver card with charge controller. In addition, LED luminary has a motion sensor to increase / decrease the LED light brightness on detecting any movement near the solar light.

As we can mount the solar panel independently in true South facing direction, Integrated Solar Street lights provide better performance as compared to All In one Solar street lights. Also, Integrated Solar Street light provides better value to customers in terms of cost as compared to traditional solar street lights. Since the battery is inside the LED light housing in integrated Solar Street lights, this eliminates the need for external battery box, which is part of traditional solar street lights. Moreover, eliminating the external battery box reduces chances of battery theft / vandalism. Hence, integrated solar street lights provide better value to customers without compromising on performance.

The solar light with battery can also be used to retrofit exiting solar lights where either the solar luminary is not working or the battery has been stolen / exhausted. The customer can still utilize the solar panel from earlier setup. The solar light with battery can be installed on exiting light shoulder on the pole and simply connected to the solar panel to resume operation. This retrofit solution helps utilize the remaining value from earlier installation (thereby enhancing the environmental benefits) and also helps in reducing costs.

Working of a Solar Street Light

On receiving sunlight, the solar panel in solar street light produces electric power (blinking green color LED indicates the battery charging process during daytime). This power charges the battery during daytime. After sunset, the solar street light starts glowing automatically. The LED light consumes power stored inside the battery during daytime. A motion sensor uses Infrared motion sensor to detect any movement around the light (working explained later). This helps in conserving energy and providing better backup especially in cloudy or foggy weather conditions. Systellar also provides the option in solar light with battery to switch On/Off the motion sensor functionality. This special functionality can be requested at the time of placing order for Integrated solar street light or the solar light with battery.

Product Construction

The solar luminary has Aluminum pressure die cast (PDC) housing, which is completely waterproof (IP65 rating) and suitable for use outdoors. The housing contains LED light card, solar driver card with PWM / MPPT charge controller, battery and motions senor. We use BRIDGELUX / OSRAM 3030 1W 80 CRI LEDs, which come with 50,000 hours guaranteed performance. Our solar driver card is STM8 microprocessor controlled and has PWM / MPPT Solar charge controller with DC LED driver.

Integrated solar street lights are supplied with Lithium-ion (11.1V or 14.8V) or Lithium Ferro Phosphate batteries (LiFePO4 12.8V) which come with 2 year and 5 year warranty respectively. The PIR motion sensor used in Systellar lights can detect movement up to 12m and we use only Panasonic make. The aluminum housing of solar light with battery cools by natural convection for long product life. Integrated Solar street lights are MNRE / NISE / govt lab approved and supplied with IEC certified Solar panels (25 year standard warranty). We use only BIS approved batteries for our products.

Working of Motion Sensor

We use Panasonic make PIR motion sensor with 12m sensing distance. The motion sensor detects movement near the solar light and controls the light brightness intelligently and helps in improving product performance. On detecting any movement, the light glows at 100% brightness. If no movement is detected for more than 1 minute, then the light is dimmed to 50% brightness. The solar light housing is cooled by natural convection and keeps LED PCB temperature within limits for long product life.

We supply Integrated solar street lights with panel and battery incorporating all requirements for supply in commercial / Government projects and solar street light tender. Since, we have our own R&D department and the technology used is indigenous, we can customize Solar street lights for any specific features required by our customers. Till date thousands of Integrated Solar Street Lights have been supplied and installed throughout India and we are proud to maintain 100% customer satisfaction rating.