Solar LED Warning Light – Flashing Alarm Lamp, 500m Visibility

Solar-Powered LED Warning & Alarm Light

Keep your work site, structure, or vessel visible and safe with this compact Solar LED Warning Light. Equipped with a built-in light sensor, it automatically charges under sunlight during the day and begins flashing as soon as darkness falls — no wiring, no electricity costs, and no manual switching required.

With a visible range of up to 500 metres and a rapid flash rate of 110 flashes per minute, this bright LED alarm lamp is ideal for tower cranes, construction sites, harbour terminals, marine vessels, bridges, chimneys, high-rise buildings, fences, and traffic management zones. Made in Mainland China.

Key Features

• ☀️ Solar Charging — Fully charges in 2–3 days of good sunlight; no external power needed
• 🔦 Automatic Day/Night Sensor — Charges during the day, flashes automatically at night
• ⚡ 110 Flashes Per Minute — High-visibility alert mode for maximum site awareness
• 👁️ 500 m Visible Range — Effective long-distance visibility for roads, harbours, and heights
• 🌡️ Wide Operating Temperature — Performs reliably from -20 °C to 60 °C
• 🔧 No Wiring Required — Simple bottom-switch ON/OFF; place face-up and go
• 🏗️ Multi-Use Applications — Construction sites, port terminals, cranes, chimneys, marine alerts, emergency situations
• ⚖️ Lightweight & Compact — Only 160 g; 8 cm diameter × 14.5 cm height

Specifications

How to Use

1. Place the light face-up in direct sunlight for at least 4 hours before first use to pre-charge.
2. Flip the bottom switch to ON.
3. The sensor handles the rest — charging by day, flashing by night automatically.

Note: Flash intensity may be temporarily reduced after long transit due to battery discharge. A full pre-charge will restore full performance. Slight variations in colour or size may occur due to photography conditions.

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Frequently Asked Questions

Q: How long does the solar LED warning light need to charge before first use?

A: We recommend placing the solar warning light face-up in direct sunlight for at least 4 hours before first use. A full charge (achieved over 2–3 sunny days) will provide the longest nightly flashing performance.

Q: Does the solar alarm lamp work automatically at night?

A: Yes! Once the bottom switch is set to ON, the built-in light sensor takes over completely. The lamp charges via solar energy during daylight hours and automatically begins flashing at 110 times per minute as soon as it detects darkness — no manual intervention needed.

Q: What surfaces and environments is this warning light suitable for?

A: This solar LED alarm lamp is versatile and suitable for a wide range of settings including construction sites, tower cranes, chimneys, bridges, high-rise buildings, harbour terminals, port facilities, marine vessels, road works, fences, and emergency situations. Its wide operating temperature range of -20 °C to 60 °C makes it reliable in most outdoor climates.

Q: Is any wiring or external power supply required?

A: No wiring or external electricity is required at all. The lamp is entirely powered by its built-in solar cells, making it a truly wire-free, energy-saving warning solution — simply switch on and position it where it can receive sunlight.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.