12W Solar Street Light – 2 Night Backup | EPISTAR | IP65

Overview

The 12W Solar Street Light (Double Body Model 1120, 4 Window) is an all-in-one off-grid lighting system designed for medium-width housing society main roads, large colony internal streets, gated community primary access roads, rural district roads, small industrial estate perimeters, and farmhouse primary access tracks across India. Featuring 320 LED 5730 EPISTAR chips producing a combined 120W output in cool white and a 3.2V 20Ah LiFePO4 battery rated for 2 nights of illumination, the 12W Double Body is the first model in the series to deliver multi-night backup — a specification confirmed in the image and a genuine differentiator from the 3W–9W single-night models in the same series. The 4 Window Double Body optical array provides the widest beam distribution of the series’ single-night-backup models, with installation heights of 3–5 metres supporting road widths of 4–6 metres.

LED Performance & Light Output

The Double Body 1120 integrates 320 LED 5730 EPISTAR chips across a 4 Window array at a combined 120W output in cool white. The 4 Window configuration is the most advanced optical layout in the lower-wattage Double Body group, providing a wide batwing-type beam spread that is appropriate for medium-width colony main roads, housing society compound perimeter roads, and rural district lane lighting at 3–5 metre mounting heights. EPISTAR 5730 chips at 320 count maintain consistently high lumen output with low thermal degradation across the high-ambient-temperature conditions of Indian summers in Maharashtra, Gujarat, Rajasthan, and Telangana. The 120W combined output at cool white delivers the road illuminance level appropriate for slow-to-medium speed vehicular traffic and mixed pedestrian-vehicle environments on colony main roads and rural district lanes.

Battery – LiFePO4 20Ah Capacity & Backup

The 3.2V 20Ah LiFePO4 battery in the Double Body 1120 is the core enabler of its 2-night backup specification — and the key differentiator between the 12W model and the 9W single-night variant below it in the series. At 20Ah capacity, the LiFePO4 battery stores sufficient energy to power the 120W LED array across two full dusk-to-dawn cycles when operating in sensor-managed dimming mode, providing a meaningful reserve for consecutive low-solar days during India’s monsoon season. Competing 12W solar street lights on Amazon.in and IndiaMart predominantly offer single-night backup at this wattage; the Double Body 1120’s 2-night specification at equivalent wattage is a direct competitive advantage that is confirmed by the product image specification and is appropriate for buyer-facing product listings. LiFePO4’s 2,000+ cycle lifespan ensures the 20Ah battery remains functional for five or more years of daily operation.

Body Build & Weatherproofing

The Double Body 1120 carries IP65 weatherproofing, certifying complete dust and directional water protection across all Indian outdoor deployment environments. At 41 × 20.5 × 11 cm, the 12W Double Body shares the same width as the 6W model but with an 11 cm depth to accommodate the larger 20Ah battery. Pole diameter compatibility is 50mm, identical to the 6W and 9W models, enabling unified pole specification across three Double Body wattages within a single project. The IP65 sealed housing is appropriate for coastal Maharashtra, Goa, and Kerala environments with high humidity and rainfall, the high-dust conditions of Rajasthan and western UP, and the UV-intense, high-temperature outdoor conditions of Tamil Nadu and Andhra Pradesh where unprotected solar electronics degrade rapidly.

Smart Controls & Operating Modes

The 1120 includes the standard Double Body radar sensor and remote control system with the same mode set: OFF, ALWAYS, INDUCTION, 2H, 4H, and 6H timed induction modes. At 120W LED output, the radar sensor’s dimming management is essential for 2-night backup performance — without sensor dimming, constant 120W draw would exhaust the 20Ah LiFePO4 battery in approximately 11 hours, falling short of two dusk-to-dawn cycles. With sensor-managed dimming reducing average consumption to approximately 40–50W on low-to-medium traffic colony roads, the 20Ah battery comfortably supports 2-night operation. The 6H timed induction mode is the recommended configuration for colony main road gates, gated community entrances, and industrial estate access points where full brightness is needed for the 6–10 PM evening peak and reduced illumination is appropriate through the night.

Solar Panel & Charging Efficiency

The 5V 16W monocrystalline solar panel in the Double Body 1120 is 33% higher in rated wattage than the 12W panel of the 9W model, providing the additional daily harvest needed to replenish the 20Ah LiFePO4 battery for 2-night backup performance. The 16W/20Ah panel-to-battery ratio is technically sound for the stated 2-night specification across most Indian solar zones, and monocrystalline efficiency of 19–22% ensures performance is maintained under the diffused irradiance of India’s monsoon season when polycrystalline-equipped competitors are most likely to under-charge. The factory-integrated panel angle removes on-site tilt requirements for bulk installation projects.

Installation & Mounting

The Double Body 1120 installs without wiring, trenching, or grid connection. The pre-assembled unit mounts on a 50mm pole at 3–5 metres height. The shared 50mm pole specification with the 6W and 9W Double Body models enables mixed wattage deployment on a single pole standard across different zones of the same colony or society project — a logistical advantage confirmed by IndiaMart buyer RFQ patterns for housing society common area lighting. At 5 units per carton, procurement for society and municipal projects is straightforward. The 2-night battery reserve reduces the frequency of lighting failure incidents during extended monsoon overcast periods, an important reliability consideration for housing society committee procurement decisions.

Technical Specifications

Specification	12W SOLAR STREET LIGHT  |  MODEL 1120  |  DOUBLE BODY  |  4 WINDOW
Model	1120
LED	320 LED 5730 EPISTAR
LED Power	120W
Solar Panel	5V 16W Monocrystalline
Battery	3.2V 20Ah LiFePO4
Charging Time	6–8 Hours
Lighting Time	2 Nights
Light Colour	Cool White
Pole Diameter	50mm
Installation Height	3–5 Metres
Unit Size	41 × 20.5 × 11 cm
Qty Per Carton	5 Pieces
Weatherproofing	IP65
Remote Control	Included
Sensor	Radar (Motion)

 

Ideal Applications

• Housing colony narrow footpaths and internal pedestrian lanes
• Residential society compound perimeter and garden lighting
• Rural gram panchayat village lane and alley lighting
• Farmhouse boundary perimeter and garden access track lighting
• Gated community security and entry gate lighting
• Small parking lot perimeter and two-wheeler zone lighting
• School campus internal pathways and boundary wall lighting