20W Solar Street Light – 12 Hours Backup | EPISTAR LED | IP65

Overview

The 20W Solar Street Light (Aero Model 1184) is a compact, all-in-one off-grid outdoor lighting solution designed for residential colony internal roads, housing society pathways, rural gram panchayat lanes, farmhouse driveways, small parking lots, and low-to-medium traffic suburban streets across India. Featuring 640 LED 5730 EPISTAR chips producing a combined 250W output in cool white and a 3.2V 25Ah LiFePO4 battery rated for 12 Hours of continuous illumination, the 1184 delivers multi-night backup capability that differentiates it from single-night competitors widely listed on Amazon.in and IndiaMart at this wattage. The Aero design integrates all components — solar panel, battery, LED module, radar sensor, and wireless remote controller — into a single pre-assembled unit for installation on a 45mm pole at heights of 5 to 7 metres, with no external wiring or grid connection required.

LED Performance & Light Output

The Aero Model 1184 integrates 640 LED 5730 EPISTAR chips at a combined LED power of 250W in cool white. EPISTAR is a Taiwanese LED manufacturer whose 5730 chip series is widely regarded as a benchmark for high-lumen-density, thermally stable SMD LEDs used in commercial outdoor lighting. The 5730 chip’s larger light-emitting surface area compared to standard 5050 or 3030 chips produces a higher lumen output per chip while maintaining lower junction temperatures — a critical factor for maintaining consistent illumination in India’s high-ambient-temperature summer conditions across Rajasthan, Telangana, Gujarat, and Maharashtra. With 640 chips spread across the Aero Model housing, the 1184 delivers an even, uniform beam across its illumination zone, reducing dark spots on colony roads, pedestrian pathways, and parking areas. Cool white output at this output level provides sharp contrast for vehicle and pedestrian movement.

Battery – LiFePO4 25Ah Capacity & 2-Night Backup

The 3.2V 25Ah LiFePO4 battery in the Aero Model 1184 is the core enabler of its 2-night backup rating — a specification confirmed in the product image and a genuine differentiator from the vast majority of 20W solar street lights available on Amazon.in and IndiaMart, which typically claim only 8–12 hours (single-night) backup. LiFePO4 (Lithium Iron Phosphate) chemistry provides over 2,000 charge-discharge cycles at 80% depth of discharge, equating to more than five years of daily operation before meaningful capacity degradation occurs. Unlike lead-acid batteries used in budget solar street lights, LiFePO4 does not suffer from sulphation during partial charge states — a common failure mode during India’s monsoon months when consecutive overcast days prevent full charging. The 25Ah capacity, combined with the radar sensor’s intelligent dimming, reliably sustains the 250W LED array across two full dusk-to-dawn cycles between charges.

Body Build & Weatherproofing

The Aero Model 1184 carries an IP65 weatherproofing rating, confirming complete protection against dust ingress and resistance to directed water jets — the minimum outdoor lighting standard recommended for India’s monsoon climate and endorsed by procurement specifications for gram panchayat, municipal, and housing society road lighting projects. The unit measures 60 × 34.2 × 10 cm, a compact flat-panel profile that minimises wind load at the 5–7 metre installation height. Pole diameter compatibility is 45mm, matching standard GI poles widely used in Indian residential and municipal lighting projects and enabling direct replacement of existing pole hardware without modification. The sealed Aero housing construction protects all internal electronics, the LiFePO4 battery, and the LED driver from moisture infiltration, thermal cycling, and dust accumulation — the primary causes of premature failure in non-IP-rated solar street lights available at lower price points in the Indian market.

Smart Controls & Operating Modes

The Aero Model 1184 is equipped with a radar-based motion sensor and a wireless remote control offering a comprehensive set of operating modes tailored to the varied site conditions encountered across Indian outdoor lighting projects. The radar sensor activates the unit at 10% optical brightness initially, triggers 100% brightness on detecting motion, then holds at 15% brightness for 30 seconds after motion ceases. This three-state dimming logic is essential for sustaining 2-night battery performance on low-to-medium traffic colony roads and rural pathways where full brightness is not required throughout the night. Remote modes include OFF (full dusk-to-dawn switch-off), ALWAYS (motion sensor off, constant dusk-to-dawn illumination at full brightness), INDUCTION (full radar-active dusk-to-dawn operation), and timed induction modes at 2H, 4H, and 6H. The 6H timed induction mode is particularly useful for gated community entry roads and commercial parking areas where activity is concentrated in the early evening hours.

Solar Panel & Charging Efficiency

The 5V 29W monocrystalline solar panel integrated into the Aero Model 1184 provides the daily energy harvest required to replenish the 25Ah LiFePO4 battery within a 6–8 hour charging window. Monocrystalline silicon cells achieve conversion efficiencies of 19–22% under standard test conditions, outperforming polycrystalline alternatives (13–17%) under both full sun and diffused light — the latter being common across India during the June–September monsoon season. The relatively high panel wattage of 29W relative to the 25Ah battery capacity ensures the 2-night backup specification is achievable even in the reduced solar insolation conditions of November–January in northern India. Compared to competing 20W solar street lights on Amazon.in and IndiaMart that pair lower-rated panels with larger backup claims, the 1184’s 29W monocrystalline panel provides a technically sound basis for its 2-night performance rating. The factory-integrated panel eliminates on-site tilt adjustment for large installation volumes.

Installation & Mounting

Installation of the Aero Model 1184 requires no external wiring, trenching, conduit work, or grid connection. The complete pre-assembled unit — solar panel, LiFePO4 battery, LED module, radar sensor, and controller — is bracket-mounted to a 45mm diameter pole at a height of 5 to 7 metres. Total on-site installation time per unit is typically under 30 minutes, making the 1184 suitable for large-volume colony road lighting projects and rural gram panchayat road schemes where installation efficiency across many poles directly affects project cost. The off-grid design is directly relevant to the most common solar street light use cases in India: peri-urban housing developments without completed grid infrastructure, rural roads under PM Gram Sadak Yojana and state rural road programmes, and farmhouse or agricultural estate perimeter roads where laying underground power cables is cost-prohibitive. At 5 units per carton, procurement logistics for housing developers, contractors, and municipal bodies are straightforward.

Technical Specifications

Ideal Applications

• Housing colony internal roads and pedestrian pathways
• Residential society parking lots and two-wheeler zones
• Rural gram panchayat roads and village access lanes
• Farmhouse driveways and agricultural estate perimeter roads
• School and hospital campus internal pathways
• Small commercial compound entry roads and forecourts
• Off-grid construction site perimeter lighting