9 Watt | 12 Hours Backup | IP65 Rating | Day & Night Sensor | Motion Sensor – Solar Street Light

Overview

The 9W Solar Street Light (Double Body Model 1119, 3 Window) is an all-in-one off-grid lighting solution designed for medium-width housing colony internal roads, housing society main pedestrian corridors, gated community access tracks, rural gram panchayat village main lanes, small parking areas, and farmhouse primary access roads across India. With 240 LED 5730 EPISTAR chips producing a combined 90W output in cool white and a 3.2V 15Ah LiFePO4 battery rated for 12 hours of illumination under ideal sensor conditions, the 9W Double Body 1119 is the most versatile wattage in the series for residential-to-light-commercial transition zones. Fully automatic operation is delivered through an integrated Day & Night Sensor and Motion Sensor, with IP65 weatherproofing ensuring year-round reliability across all Indian climate zones — no grid connection or external wiring required.

LED Performance & Light Output

The Double Body 1119 integrates 240 LED 5730 EPISTAR chips across a 3 Window array at a combined 90W output in cool white. The 3 Window configuration produces a significantly wider illumination footprint than the 1 and 2 Window lower-wattage models, enabling effective road coverage at 3–5 metre mounting heights on medium-width colony roads and housing society main pedestrian routes. EPISTAR 5730 chips at 240 count provide the thermal mass and lumen maintenance required for consistent output across India’s high-ambient-temperature outdoor environments — a relevant consideration at the 9W output level where LED junction heating is more significant than at lower wattages. Cool white output at 90W provides the brightness and contrast appropriate for slow-moving vehicle access roads and pedestrian-vehicle shared zones in residential colonies and rural village main lanes.

Battery – LiFePO4 15Ah Capacity & 12-Hour Backup

The 3.2V 15Ah LiFePO4 battery in the Double Body 1119 is 25% larger than the 6W model’s 12Ah unit, supporting the higher 90W LED draw across 12 hours of dusk-to-dawn operation under ideal sensor-dimming conditions. The 15Ah LiFePO4 battery at this discharge rate also provides a meaningful buffer against partial-charging monsoon days compared to the smaller batteries in the 3W and 6W models, maintaining 12-hour backup performance in most Indian solar zones even during consecutive overcast days that prevent full replenishment. LiFePO4’s 2,000+ cycle lifespan is particularly relevant at the 9W tier, where the product is more likely to be deployed on shared-access colony roads and panchayat main lanes scheduled for long-term lighting infrastructure rather than temporary or personal-use garden lighting.

Body Build & Weatherproofing

The Double Body 1119 carries an IP65 weatherproofing rating, confirming complete dust ingress protection and water jet resistance across India’s diverse outdoor climate conditions — exceeding the standard IP64 minimum for outdoor lighting. At 50 × 23.5 × 11 cm, the 9W Double Body accommodates the 240-chip 3 Window LED array within a sealed housing. Pole diameter compatibility is 50mm, matching the most common residential and semi-commercial GI pole specification in India and enabling unified pole procurement for mixed 6W and 9W deployments within a single project. The 11 cm depth provides the additional internal volume required for the 15Ah battery without increasing the housing’s aerodynamic footprint meaningfully at the 3–5 metre installation height. The sealed construction protects all internal electronics, LED driver, and LiFePO4 battery from moisture infiltration, dust accumulation, and insect ingress across India’s full range of outdoor climate environments.

Smart Controls & Sensor Operation

The Double Body 1119 operates fully automatically through two integrated sensing systems — a Day & Night Sensor and a Motion Sensor — ensuring hands-free dusk-to-dawn performance without any manual switching. The Day & Night Sensor activates the unit automatically at dusk and switches it off at dawn across all seasons, providing consistent coverage year-round. The Motion Sensor manages a three-state brightness sequence: 10% standby brightness during inactive periods, 100% full brightness on motion detection, and 15% brightness for 30 seconds post-motion before returning to standby. At 90W output, this sensor-managed dimming is more consequential than at lower wattages — without effective dimming, sustained 90W draw would deplete the 15Ah LiFePO4 battery in approximately 11–12 hours, leaving no reserve for the late pre-dawn period. Sensor dimming reduces effective average consumption to approximately 30–40W across a typical overnight cycle on low-to-medium traffic colony roads and rural village main lanes, comfortably delivering the 12-hour backup within the LiFePO4 battery’s capacity. The included remote control provides additional mode flexibility with 4H and 6H timed induction modes — recommended for colony main access road lighting where sustained full brightness is required during the 6–10 PM peak period and lower-level illumination is appropriate for the remainder of the night.

Solar Panel & Charging Efficiency

The 5V 12W monocrystalline solar panel in the Double Body 1119 provides the daily energy harvest needed to replenish the 15Ah LiFePO4 battery within 6–8 hours of direct sunlight. At 12W panel output paired with 15Ah battery capacity, the 9W model’s charging ratio is well-balanced for the stated 12-hour backup claim across most Indian solar zones. Monocrystalline efficiency of 19–22% maintains charging performance under the diffused irradiance conditions of India’s June–September monsoon season and the lower sun angles of north Indian winters (November–January), reducing the risk of under-charge failures that commonly affect polycrystalline-equipped competing solar street lights at this wattage. The factory-integrated panel eliminates on-site tilt calibration, ensuring consistent charging performance across bulk colony and panchayat installations managed by non-specialist maintenance personnel.

Installation & Mounting

The Double Body 1119 installs without grid wiring or trenching. The fully pre-assembled unit — with Day & Night Sensor and Motion Sensor factory-integrated — mounts on a 50mm pole at 3–5 metres height, the widest installation height range in the Double Body series. At 5 metres, the 9W 3 Window array covers medium-width colony roads and panchayat village main lanes without dark-spot gaps between pole positions. The off-grid design eliminates the civil works cost of underground cable installation — a primary cost driver in rural and peri-urban road lighting projects across India — making the 1119 a cost-effective specification for gram panchayat lighting tenders and housing society internal road schemes. Installation is typically completed in under 20 minutes per unit. Supplied at 5 units per carton, logistics for bulk project procurement are efficient.

Technical Specifications

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