CCMS & Sensor Street Lighting - H...
- Noida
- 2026-05-26 10:55
A radar motion sensor bulb uses microwave Doppler technology to detect movement — making it significantly more reliable than PIR bulbs in Indian conditions. PIR sensors detect body heat and fail when room temperature approaches body temperature (common in Indian summers above 38 degrees C). Radar sensors detect reflected microwave signals — completely unaffected by ambient temperature. Esysense radar bulbs are available in 7W and 10W, E27 and B22, from Rs.199. All plug directly into standard sockets — no rewiring needed.
Wattage: 7W & 10W
Base Type: E27 & B22
Sensor Type: Radar (Microwave)
Day/Night Function: Available
Special Feature: Auto On/Off operation
Price: From Rs.199
Wattage: 10W
Base Type: B22
Sensor Type: Radar + LDR
Day/Night Function: Yes — essential for outdoor-facing spaces
Special Feature: Daylight blocking prevents daytime activation
Price: From Rs.284
Full range: https://esysense.com/collections/motion-sensor-bulb
Radar (microwave) motion sensing is the superior technology for Indian homes and offices — not because of marketing, but because of physics. Understanding the difference helps you buy the right product and avoid the PIR reliability problems that affect millions of Indian homes during summer months.
The radar sensor inside the bulb continuously emits low-power microwave signals (typically at 5.8 GHz or 10.525 GHz — same frequency band as Wi-Fi, completely safe). These signals bounce off walls, furniture, and any objects in the room and return to the receiver:
Empty room: the reflected signal pattern is stable and constant — no activation.
Person enters: their body disrupts the reflected signal, creating a measurable Doppler frequency shift.
Shift detected: the sensor circuit identifies this as motion and activates the LED driver.
Full brightness: the bulb illuminates within milliseconds of the trigger.
Countdown: once movement stops, a timer counts down the preset delay, then dims or switches off.
Bottom line:
The radar sensor consumes only 0.5–1W in standby (continuously monitoring). Over a full year this amounts to approximately 4–8 kWh in standby — completely negligible compared to the electricity saved by not running the light unnecessarily.
Detection Principle:
Uses Doppler shift of reflected microwave signals
Indian Summer Performance:
Excellent — unaffected by high temperatures
Subtle Movement Detection:
Excellent — can detect very small body movements
False Triggers From Fans/AC:
Very rare — airflow does not affect radar sensing
Detection Through Thin Glass:
Yes — microwaves can pass through glass
False Triggers From Sunlight:
Very rare
Cost Difference (2026):
Minimal — Esysense radar bulbs start from Rs.199
Recommended for India:
Yes — reliable throughout all seasons
Detection Principle:
Detects infrared heat difference between body and surroundings
Indian Summer Performance:
Poor — performance drops when room temperature approaches body temperature (38–42°C)
Subtle Movement Detection:
Poor — requires noticeable movement
False Triggers From Fans/AC:
More common due to temperature variation
Detection Through Thin Glass:
No — requires direct line of sight
False Triggers From Sunlight:
More common because sunlight creates heat patches
Cost Difference (2026):
Usually slightly cheaper
Recommended for India:
Limited — more reliable during cooler months only
A: Minor interactions are possible but rarely cause practical problems. Esysense's processing circuits are designed to filter ambient microwave signals, and dual-bulb corridor installations typically operate independently without issues.
A: A radar bulb uses microwave Doppler technology — unaffected by temperature, detects subtle movement, works reliably year-round in India. A PIR bulb detects infrared heat — unreliable in Indian summers when room temperature approaches body temperature (38-42 degrees C).
The Esysense radar motion sensor bulb is the right choice for Indian homes and offices — superior to PIR in every condition relevant to India: summer heat, ceiling fans, kitchen steam, and dusty environments. From Rs.199, plug-and-play, E27 and B22 available. Browse the full radar bulb range at https://esysense.com/collections/motion-sensor-bulb
Written from direct product testing and manufacturer specifications by Esysense Tech Innovations Pvt. Ltd., Ghaziabad, India. All prices, specs and model references are verified against live product listings at esysense.com. Last updated: May 2026
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