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Emergency & Rechargeable SKU: LS-RET-EM09

Smart Emergency Rechargeable LED Bulb

Name: Smart Emergency Rechargeable LED Bulb
Brand: LinkSow Lighting
SKU: LS-RET-EM09
Availability: InStock

The LinkSow LS-RET-EM09 is a smart emergency rechargeable LED light bulb with built-in lithium battery backup. Screwing into any standard E27 or B22 fixture, it functions as a regular energy-saving bulb while automatically staying illuminated for 3-4 hours during electrical grid power outages.

Dual Wattage

9W (AC) / 4.5W (DC Emerg)

Battery Backup

3 - 4 Hours Auto-On

Base Options

E27 Screw / B22 Bayonet

Hook Cap

Portable Hook Included

🏢 B2B Commercial Sourcing Summary

Factory MOQ 1,000 PCS (Custom retail packaging)

Sample Dispatch 2 - 4 Business Days

Mass Production 12 - 15 Calendar Days

Packaging Styles Individual Color Box / 2-Pack Blister Hang Card

Target Markets Africa, Middle East, SE Asia, LatAm, Europe

Shipping Port Zhongshan / Shenzhen Port

Request Factory Quotation & Samples → 💬 WhatsApp Live Sourcing

Engineering Excellence

Core Engineering Highlights & Architecture

Designed and built in China's World Lighting Capital, Guzhen, with certified Tier-1 components for rigorous international project standards.

💡

Instant Automatic Grid Blackout Detection

Smart sensor circuitry detects utility power grid failure in under 0.1 seconds and turns the bulb on automatically using internal lithium battery reserve.

🪝

Portable Lantern with Hook Cap

Unscrew the bulb, attach the included portable hook cap, and convert it into a mobile camping lantern or emergency hand torch.

⚡

Wide Voltage AC 85-265V Tolerance

Resilient IC driver withstands severe voltage fluctuations, brownouts, and power spikes common in developing grid infrastructures.

🔋

Over-Charge & Over-Discharge Protection

Built-in intelligent Battery Management System (BMS) ensures safe trickle charging and prevents cell degradation over 500+ charge cycles.

Comprehensive Datasheet

Full 14-Point Technical Specifications

Verifiable parameters tested in accordance with international CIE, IEC, and EN lighting laboratory standards.

Parameter Category	Engineering Specification Details (LS-RET-EM09)
Model Number (SKU)	LS-RET-EM09 (Also available in EM12-12W and EM15-15W)
Electrical Power Rating	9W AC Normal Operation / 4.5W DC Emergency Backup
Input Operating Voltage	AC 85-265V / 50-60Hz Wide Voltage Operation
Luminous Flux Output	900 lm (AC Grid Powered) / 450 lm (DC Emergency Mode)
Color Rendering Index (CRI)	Ra ≥ 80 (Natural daylight color rendering)
Color Temperature (CCT)	3000K Warm / 4000K Neutral / 6500K Daylight White
Emergency Runtime Duration	3 - 4 Hours Continuous Lighting during blackouts
Battery Cell Specification	Rechargeable 3.7V 18650 1200mAh-1800mAh Lithium
Battery Recharging Time	Automatic background charging in 5-6 hours while light is in use
Lamp Base Socket Standard	E27 Edison Screw / B22 Bayonet Cap (Solid Nickel Plated)
Housing & Thermal Core	Flame-retardant Thermal PBT + Aluminum Heat Core + PC Opal Globe
Included Accessories	Free Portable Hanging Hook Cap with Push-Button Switch
Testing & Certifications	CE, RoHS, CB, UN38.3 Safe Battery Certificate
Commercial Warranty	2 Years Full Retail Replacement Warranty

Photometric Distribution

Optical Engineering & Dialux Simulation Guide

220° omnidirectional frosted polycarbonate globe provides wide, glare-free light dispersion suitable for ceiling pendants, desk table lamps, and emergency wall sconces.

Mounting Height	Recommended Spacing	Application Target Area	Achieved Average Illuminance
Tabletop / Desk Mount	Direct Task Lighting	Study Desk & Table Lamp	200 - 300 Lux (AC) / 120 Lux (DC)
2.2 - 2.6 Meters	Single Bulb per Room	10-15m² Bedroom / Kitchen	80 - 120 Lux (AC) / 40 - 60 Lux (DC)
Handheld / Hooked	1.5 - 2.0 Meter Radius	Emergency Camp & Repair	50 - 100 Lux (Portable)

Real-World Applications

Recommended Project Environments

From extreme climatic conditions to luxury indoor spaces, verified across global installations.

Regions with Unstable Power Grids

Essential household SKU in areas prone to load shedding, typhoons, and blackouts.

Hardware Wholesalers & Retail Chains

High impulse grocery and hardware store checkout counter retail display.

Camping & Outdoor Emergency Kits

Dual-use portable lantern for campers, disaster preparedness kits, and night stalls.

Four-Gate Quality Control

Zero-Defect Export Assurance for LS-RET-EM09

Every batch undergoes Incoming Quality Control (IQC), automated SMT optical validation, 48-hour high-temperature full-load aging tests, and Outgoing Quality Check (OQC) drop testing.

CE Compliant CB Certified RoHS Lead-Free 48h Aging Pass

GATE 01: IQC

Component Testing

100% LED chip forward voltage, CCT binning, and driver THD checks.

GATE 02: IPQC

Torque & Thermal Paste

Calibrated pneumatic screwdriver torque and automated solder paste printing.

GATE 03: 48H AGING

Thermal Stress Chamber

45°C constant temperature, 10,000 rapid on/off switching cycles.

GATE 04: OQC

Packaging & Hi-Pot

3,750V dielectric breakdown test and structural carton drop testing.

Direct Factory Inquiry

Request Quotation or Sample for LS-RET-EM09

Get official Bill of Materials (BOM) cost breakdowns, sample availability, Dialux simulation files, or private label options within 24 hours directly from our Guzhen engineering office.

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✓ Free Dialux 3D photometric calculation report for tender projects

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