Since 2015, CoolKit has focused exclusively on IoT and smart home. We provide comprehensive turnkey solutions and professional OEM/ODM services for 300+ smart device SKUs.
Since our founding in 2015, CoolKit has focused exclusively on the IoT and smart home sectors. Our core business provides comprehensive IoT turnkey solutions and professional OEM/ODM services for smart devices.
CoolKit (eWeLink) is one of only 2 Google Home ASPs globally, and one of just 5 for Amazon Alexa — a testament to our platform integration expertise.
9-floor manufacturing facility with 5+ wave soldering lines and 10+ assembly lines
70%+ R&D team ratio, Shenzhen headquarters with dedicated QA lab
Serving 176 countries with 40M+ eWeLink users in 36 languages
SMT, 3D AOI, SPI, X-Ray, nitrogen reflow, temp & humidity testing
From simple rebranding to full ground-up development — pick the model that matches your project scope and timeline.
Rebranding with consistent internal hardware and firmware. Fastest time to market.
Tailored firmware modifications while keeping the proven hardware platform.
Comprehensive development from the ground up for unique product requirements.
From compact sensors to full-featured smart panels — our product range covers every smart home scenario.
Ultra-compact Zigbee smart switch, no neutral wire required
Matter-enabled Wi-Fi smart switch with ultra-small form factor
Smart power meter switch with real-time energy monitoring
Dual relay with power metering, supports roller shutters
Premium smart wall switch with Matter support, 120/86 type
Full-touch smart switch with LED edge lighting and gesture control
Circular design wall switches & sockets, Matter over Wi-Fi
Zigbee & Wi-Fi smart plugs, Type E/F, compact design
Gen2 Matter over Wi-Fi smart plug, US Type
Wi-Fi smart plug with energy monitoring capability
Zigbee LCD temperature & humidity sensor, IP65 option
Zigbee door/window sensor with long battery life
Zigbee water leak sensor for flood detection
Zigbee human presence sensor for occupancy detection
CO2, PM2.5/PM10 air quality monitors, Wi-Fi & Matter
Ultra Matter Bridge — exposes Zigbee/Wi-Fi devices to all Matter platforms
Local-first smart home hub with Docker, Zigbee & Matter
Zigbee/Thread USB dongle for Home Assistant & custom gateways
Zigbee thermostatic radiator valve for smart heating control
Zigbee smart water valve for leak prevention & irrigation
From chip-level firmware to global cloud services — we deliver the full stack so you can focus on your brand and customers.
Chips, modules & embedded firmware across Bluetooth, Wi-Fi, Matter & Zigbee
Public & private IoT platform with global cloud servers in Frankfurt, Beijing & more
Custom mobile apps, web dashboards, tablet & car central display integration
Custom Alexa & Google skills, Matter/WWA/WWGH certifications
Take an immersive virtual tour of our 9-floor Huizhou manufacturing facility — from SMT lines to QA labs.
Immersive panoramic walkthrough of our manufacturing facility
Request an On-site VisitFrom top appliance brands to energy companies — our solutions power smart home products across the globe.
OEM/ODM Smart Devices
OEM/ODM Smart Devices
OEM/ODM Smart Devices
OEM/ODM Smart Devices
OEM/ODM Smart Devices
OEM/ODM Smart Devices
OEM/ODM Smart Devices
200+ manufacturers
One of only 2 globally authorized solution providers
One of only 5 globally authorized solution providers
Featured at Google's developer conference
Highlighted at Apple's worldwide developer conference
Won 2 awards at the Matter Developer Conference
eWeLink's SmartHome Skill recognized for top-tier quality
AWS IoT Industry Excellence Case Award
Whether you need a simple rebrand or a full custom product — our team is ready to help you bring your smart home vision to life.