E27 Motion Sensor Bulbs: What to Know Before Buying | Guide Quick Answer An e27 motion sensor bulb is an automated LED fixture built with a standard 27mm Edison screw base and an integrated motion sensor—such as microwave radar or passive infrared—directly inside the bulb housing. Upgrading to an e27 motion sensor bulb converts standard screw-socket light holders into hands-free fixtures that turn on automatically upon detecting movement and switch off after inactivity, eliminating power waste in corridors, staircases, balconies, and parking bays. Product Overview ● Esysense 10W Radar Motion Sensor Bulb (E27) : High-performance screw-base LED bulb featuring 360-degree microwave radar tracking, up to a 9-meter detection range, and an automatic 60-second shutoff timer. ● Day/Night Photocell Integration : Combines ambient light sensing with motion tracking to ensure the bulb triggers only in dark or nighttime conditions, preventing daytime power waste. ● Standard E27 Edison Screw Base : 27mm threaded base designed for direct plug-and-play installation into standard screw lamp holders without rewiring or smart hubs. ● Durable A70 Housing Design : Built with an efficient heat-dissipating housing for extended operational lifespan and stable performance across residential and commercial spaces. What to Know Before Buying an E27 Motion Sensor Bulb An e27 motion sensor bulb uses the standard 27mm Edison screw fitting (E27), making it compatible with ceiling fixtures, pendant lamps, and outdoor fixtures. Before purchasing, consider these essential technical factors: 1. Socket Base Compatibility (E27 vs. B22) ● Threaded Screw Fit : The "E27" designation indicates an Edison screw base with a 27mm thread diameter. Confirm that your target socket is a threaded screw holder rather than a push-and-twist B22 bayonet pin socket. ● Tool-Free Retrofit : Installing an e27 motion sensor bulb requires no tools—simply screw the bulb clockwise into your existing holder until secure. 2. Sensor Technology: Radar vs. PIR ● Microwave Radar Bulbs : Emit high-frequency radio waves to detect movement across 360 degrees. Radar signals pass through glass globes, thin partition walls, and light rain, providing up to a 9-meter detection radius. ● PIR (Passive Infrared) Bulbs : Detect shifts in body heat within line of sight. PIR sensors work well in open indoor spaces but are blocked by solid glass shades or enclosed globes. 3. Wattage and Illumination Output ● 10W High-Lumen Output : A 10W e27 motion sensor bulb delivers bright, clear illumination equivalent to traditional high-wattage incandescent lamps, making it ideal for corridors, basements, and parking bays. ● 7W Standard Output : Lower wattage options suit smaller spaces like utility closets, pantries, or compact stair landings. 4. Integrated Day/Night Photocell (LUX Sensing) ● Daylight Suppression : Ensure your selected bulb includes an ambient light sensor. This feature keeps the motion detection system inactive during daylight hours, saving energy when natural light is present. 5. Detection Range and Shutoff Delay ● Coverage Radius : Look for 360-degree detection angles covering up to 4 meters in installation height and up to 9 meters horizontally. ● Auto Shutoff Delay : A standard 60-second delay timer ensures lights remain lit while navigating a space without turning off prematurely. Best Places to Install E27 Motion Sensor Bulbs ● Residential & Office Corridors : Replaces manually operated screw-in hallway lights to end continuous power consumption in shared passageways. ● Stairwells & Landing Fixtures : Screws directly into ceiling holders to provide hands-free safety and prevent stumbles on stairs at night. ● Outdoor Covered Entryways & Balconies : Provides automated lighting when approaching your front door while serving as a deterrent against unauthorized visitors. ● Garages & Car Parking Bays : Automatically lights up when vehicles pull in or pedestrians enter, shutting off 60 seconds after movement stops. ● Storage Rooms & Utility Areas : Keeps lighting fully automated in spaces where occupants frequently enter with full hands. Key Benefits of Upgrading to E27 Motion Sensor Bulbs ● Instant Plug-and-Play Upgrade : Screws into standard E27 sockets effortlessly without requiring an electrician or smart home hub. ● Substantial Electricity Savings : Eliminates wasted runtime by powering the LED chips only when physical movement is present. ● Enhanced Safety and Convenience : Hands-free illumination ensures pathways and entryways are brightly lit the moment you step into range. ● Extended LED Lifespan : Reduced daily operating hours decrease thermal wear on internal electronic drivers and LED components. People Also Ask Q: What does E27 mean on a motion sensor bulb? A: E27 indicates an Edison screw base with a 27mm thread diameter. It is one of the most common screw-type lamp holders used in residential and commercial light fixtures globally. Q: Can an E27 motion sensor bulb work inside a glass fixture? A: Yes, provided you choose an E27 bulb with microwave radar technology. Radar waves penetrate glass globes and light shades easily, whereas PIR heat sensor bulbs get blocked by glass barriers. Q: How do I install an E27 motion sensor light bulb? A: Turn off power to the light fixture, remove your old bulb, screw the E27 motion sensor bulb clockwise into the holder until snug, and turn the main switch back on. Leave the wall switch turned on for continuous automatic operation. Frequently Asked Questions (FAQ) Q: What is the difference between an E27 and a B22 motion sensor bulb? A: The difference lies entirely in the base fitting. An E27 bulb uses a 27mm screw-thread base, while a B22 bulb uses a 22mm bayonet push-and-twist pin base. The internal sensor technology and LED performance remain identical. Q: Does the Esysense 10W E27 motion sensor bulb require a smart hub or Wi-Fi? A: No. The Esysense 10W E27 Motion Sensor Bulb features self-contained radar motion and photocell sensors built directly into the housing, operating automatically without smart hubs or mobile apps. Q: How far can an E27 radar motion sensor bulb detect movement? A: High-quality radar models like the Esysense 10W E27 bulb offer a 360-degree detection angle with a sensing range of up to 9 meters and an installation height of up to 4 meters. Q: Will an E27 motion sensor bulb turn off automatically? A: Yes. Once movement stops in the detection field, the internal microcontroller waits approximately 60 seconds before automatically powering off the light. Q: Where can I purchase quality E27 motion sensor bulbs online? A: You can browse and order directly from the Esysense Motion Sensor Bulbs. Recommended Resources & Next Steps Ready to upgrade your screw-fit lighting fixtures to intelligent, automated LED fixtures? Explore technical specifications for the Esysense 10W E27 Motion Sensor Bulb or check out the full range of automated options at the Esysense Motion Sensor Bulbs. Written from direct product testing and manufacturer specifications by Esysense Tech Innovations Pvt. Ltd., Noida, India. All prices, specs and model references are verified against live product listings at esysense.com. Last updated: September 2026. Contact us ● Trade Name : ESYSENSE ● Phone number : +91 9650802609 ● Email : ecom@esysense.com ● Physical address : Noida office E Block Sector 63, 201301 UP, India ● GSTIN number : 09AAHCE9536B1ZK ● TAN number : DELE18275F ● Website URL : https://esysense.com