4W Solar Street Light – EPISTAR LED | IP65 | Dusk to Dawn

Overview

The 4W Solar Street Light (Star Model 1248) is a compact, all-in-one off-grid lighting solution designed specifically for narrow residential colony footpaths, housing society internal pedestrian lanes, garden perimeter walls, farmhouse boundary paths, and low-traffic rural village alleys across India. Featuring 192 LED 2835 EPISTAR chips producing a combined 40W output in cool white and a 3.2V 5Ah LiFePO4 battery rated for 1 night of illumination, this is an entry-level solar street light that serves applications where higher-wattage units would be over-specified and cost-inefficient. The Star Model 1 Window design integrates all components — solar panel, battery, LED module, radar sensor, and remote controller — into a single pre-assembled unit for pole mounting at heights of 3 metres on 50mm poles, with no grid connection or external wiring required.

LED Performance & Light Output

The Star Model 1248 houses 192 LED 2835 EPISTAR chips at a combined 40W output in cool white. The 2835 EPISTAR chip is a compact, high-efficacy SMD LED widely used in low-to-mid power outdoor lighting for its reliable lumen output and long operational lifespan. EPISTAR is a Taiwanese LED manufacturer whose chip series is a recognised quality benchmark in the Indian solar street light market, appearing as a search qualifier on both Amazon.in and IndiaMart for buyers comparing LED component quality. At 192 chips across a single-window (1 Window) Star Model array, the 1248 produces uniform, low-glare cool white illumination well suited to 3-metre mounting on narrow pedestrian paths, garden boundary walls, and colony access gates where wide road coverage is not required. The cool white output is appropriate for safety lighting on footpaths and residential garden perimeters.

Battery – LiFePO4 5Ah Capacity & Backup

The 3.2V 5Ah LiFePO4 battery in the Star Model 1248 provides the energy storage required to power the 40W LED array through one full night of dusk-to-dawn operation under ideal solar charging conditions. LiFePO4 (Lithium Iron Phosphate) chemistry is a significant specification advantage over the lead-acid or low-grade Li-ion batteries found in many budget solar garden lights available at similar price points on Amazon.in and IndiaMart. Lead-acid batteries in this form factor degrade rapidly under repeated deep discharge, losing usable capacity within 12–18 months under daily dusk-to-dawn cycling. LiFePO4 maintains over 80% capacity after 2,000 charge-discharge cycles, equating to more than five years of daily operation. The chemistry is also thermally stable, making it suitable for unattended operation in the high-ambient-temperature conditions of Indian summers, particularly in Rajasthan, Gujarat, and Andhra Pradesh where battery thermal stress is a leading cause of premature solar light failure.

Body Build & Weatherproofing

The Star Model 1248 carries an IP65 weatherproofing certification, confirming complete dust protection and resistance to water jets from any direction. IP65 is the appropriate outdoor lighting standard for year-round deployment across India’s monsoon-affected climate zones, from the heavy-rainfall coastal regions of Kerala and the Western Ghats to the dust-laden semi-arid environments of Rajasthan and western Uttar Pradesh. The unit measures 34.5 × 23 × 20 cm — the most compact form factor in the Star Model series — making it suitable for 3-metre residential poles without visual imbalance. Pole diameter compatibility is 50mm, covering the standard residential and colony-grade GI poles commonly specified in Indian housing society and panchayat lighting projects. The sealed housing construction resists moisture infiltration, dust accumulation on internal electronics, and insect ingress, all of which are common failure causes in lower-cost, non-IP-rated solar garden lights.

Smart Controls & Operating Modes

The Star Model 1248 is equipped with a radar-based motion sensor and a wireless remote control providing multiple operating modes to suit varied residential and garden lighting applications. The sensor operates with 10% optical brightness initially, activates to 100% on motion detection, then holds at 15% after 30 seconds of no movement — a three-state dimming sequence that maximises the 5Ah battery’s single-night runtime on low-traffic colony footpaths and garden boundary perimeters where sustained full brightness is rarely required. Remote control modes include OFF (full dusk-to-dawn switch-off), ALWAYS (motion sensor disabled, constant dusk-to-dawn illumination), INDUCTION (full radar-active dusk-to-dawn), and timed induction modes at 2H, 4H, and 6H. The 2H and 4H modes are particularly suitable for residential garden and society gate lighting where activity is concentrated in the early evening and overnight full-brightness illumination is neither required nor desirable for adjacent sleeping residents.

Solar Panel & Charging Efficiency

The 5V 9W monocrystalline solar panel in the Star Model 1248 charges the 5Ah LiFePO4 battery within 6 to 8 hours of direct sunlight. Monocrystalline silicon cells achieve conversion efficiencies of 19–22% under standard test conditions, outperforming polycrystalline alternatives in both full-sun and diffused light conditions — the latter being relevant during India’s monsoon season and the shorter, lower-angle sun days of north Indian winters (November–January). The 9W panel wattage is correctly sized for the 5Ah battery’s daily charge requirement, ensuring reliable single-night backup across most Indian solar zones without the over-panelling that inflates cost in competing products. The factory-integrated panel eliminates on-site tilt calibration, ensuring consistent performance across residential installations managed by housing society maintenance staff without specialist solar knowledge.

Installation & Mounting

The Star Model 1248 is designed for installation without electrical wiring, trenching, or grid connection. The complete pre-assembled unit mounts to a 50mm diameter pole at 3 metres height using the included bracket. At 3 metres, the unit is appropriate for narrow pedestrian footpaths, garden walls, gated community internal lanes, and residential boundary lighting where higher pole heights would over-illuminate adjacent properties. Installation can typically be completed in under 20 minutes per unit, making the 1248 practical for DIY installation by housing society maintenance staff or small electrical contractors without specialist solar installation experience. The off-grid design is relevant for garden walls and colony pathways where routing electrical cable is structurally impractical. Supplied at 10 units per carton, the 1248 is procurement-ready for housing society common area lighting projects.

Technical Specifications

Ideal Applications

• Housing colony narrow footpaths and pedestrian walkways
• Residential society garden perimeter walls and boundary lighting
• Farmhouse garden pathways and courtyard perimeter lighting
• Gated community internal narrow access lanes
• Rural village alley lighting under gram panchayat schemes
• Small residential parking bay perimeter lighting
• School and society garden boundary wall lighting