1. Product Overview
The O.N LED Anti-Blackout Emergency Light is a 2W, 160 lumen recessed lamp designed for indoor use. It provides 6500K cool white illumination and features an integrated lithium-ion battery for emergency operation during power outages. This lamp is suitable for installation in a standard 503 support box and connects directly to a 230V AC power supply.

Figure 1: Front view of the O.N LED Anti-Blackout Emergency Light.
2. Safety Information
Please read all safety instructions carefully before installation and use. Failure to follow these instructions may result in electric shock, fire, or other hazards.
- Electrical Safety: Installation must be performed by a qualified electrician in accordance with local electrical codes. Ensure the main power supply is disconnected before any installation or maintenance.
- Voltage: This device operates on 230V AC. Verify your power supply matches this requirement.
- Indoor Use Only: This product has an IP20 rating, meaning it is protected against solid objects larger than 12.5mm but has no protection against water. Do not install in wet or damp locations.
- Battery: Contains a non-replaceable lithium-ion battery. Do not attempt to open or replace the battery. Dispose of the product responsibly at the end of its life.
- Heat: Do not cover the lamp or install it near heat sources. Ensure adequate ventilation.
- Damage: Do not use the lamp if it is damaged. Contact customer support for assistance.
3. Package Contents
Verify that all items are present in the package:
- 1 x O.N LED Anti-Blackout Emergency Light
- 1 x Integrated Lithium Battery (3.7V 700mAh)
- Mounting screws (typically included for wall box installation)
Note: The 503 support box for recessed installation is not included and must be purchased separately.
4. Installation (Setup)
This lamp is designed for recessed installation into a standard 503 wall support box. Follow these steps carefully:
- Disconnect Power: Before starting, ensure the main power supply to the installation area is completely switched off at the circuit breaker.
- Prepare Wall Box: Ensure a standard 503 support box is properly installed in the wall.
- Wire Connection: Connect the two wires from the lamp to the 230V AC power supply wires within the wall box. It is crucial to respect the Live (L) and Neutral (N) connections as indicated by your electrical wiring. If unsure, consult a qualified electrician.
- Internal Switch: Locate the small internal switch on the lamp unit. Set this switch to the "ON" position. This activates the anti-blackout function and allows the battery to charge.
- Mounting: Carefully insert the lamp unit into the 503 support box. Use the provided screws to secure the lamp firmly to the wall box.
- Restore Power: Once installation is complete and secure, restore power at the circuit breaker. The lamp will begin charging its internal battery.
Caution: When removing the transparent cover for accessing the internal switch, exercise care to avoid breaking the fixing tabs.
5. Operating Instructions
The O.N LED Anti-Blackout Emergency Light operates automatically once installed and powered.
- Normal Operation: When main power (230V AC) is present, the lamp's internal battery will charge. A small green LED indicator will illuminate to show that the unit is receiving power and charging.
- Emergency Mode: In the event of a power outage (blackout), the lamp will automatically switch to battery power and illuminate, providing emergency lighting.
- Battery Autonomy: The fully charged battery provides up to 3 hours of continuous light at maximum power during a blackout.
- Recharge Time: After a power outage, the battery requires approximately 6-8 hours to fully recharge once main power is restored.
Note: The small green LED indicator remains lit when power is present. If desired, a small piece of opaque tape can be applied over it to reduce its visibility, without affecting functionality.
6. Maintenance
The O.N LED Anti-Blackout Emergency Light requires minimal maintenance.
- Cleaning: Disconnect power before cleaning. Wipe the lamp's surface with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Battery Care: To ensure optimal battery life, it is recommended to allow the battery to fully discharge and then fully recharge periodically (e.g., every 3-6 months) if power outages are infrequent.
- Inspection: Periodically check the lamp for any visible damage or loose connections.
7. Troubleshooting
If you encounter issues with your O.N LED Anti-Blackout Emergency Light, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Lamp does not light up during a power outage. |
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| Green LED indicator is not lit when power is present. |
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| Lamp emits a buzzing or whistling sound. |
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| Difficulty removing the transparent cover. |
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8. Specifications

Figure 2: Dimensions of the O.N LED Anti-Blackout Emergency Light.
| Feature | Detail |
|---|---|
| Model Number | 8023389640843 |
| Brand | Electronic Megastore |
| Power | 2 W |
| Luminous Flux | 160 lm |
| Color Temperature | 6500 K (Cool White) |
| LED Type | SMD2835 |
| Number of LEDs | 12 |
| Illumination Angle | 120° |
| Power Supply | 230 Vac |
| Battery Type | Lithium 3.7V 700mAh |
| Battery Autonomy (Max Power) | 3 hours |
| Recharge Time | 6-8 hours |
| Protection Rating | IP20 (Indoor Use Only) |
| Material | PC (Polycarbonate) / ABS |
| Color | White |
| Dimensions (L x W x H) | 115 x 80 x 28 mm (4.53 x 3.15 x 1.1 inches) |
| Weight | 78 g (0.17 lbs) |
| Installation Type | Recessed, for 503 support box |
9. Warranty and Support
For warranty information and technical support, please contact Electronic Megastore directly through their official channels or the retailer where the product was purchased.
Please have your model number (8023389640843) and proof of purchase ready when contacting support.