This PIR motion sensor switch operates on a passive infrared detection principle, automatically activating connected devices when movement is detected within its sensing range. Designed as a compact USB outlet, it integrates a mini form factor that plugs directly into standard USB ports, making it suitable for DIY lighting strips, low-voltage LED strings, and other 5‑24V DC appliances up to 2A. The white housing is constructed from flame‑retardant ABS plastic, offering reliable insulation and moderate durability for indoor use. The internal circuit board employs surface‑mount components and a dedicated microcontroller to handle activation logic, ensuring stable occupancy‑based switching without noticeable latency. The sensor features a detection angle of approximately 100‑120 degrees and a maximum range of around 3‑5 meters, depending on ambient temperature and mounting height.

Once motion ceases, the built‑in timer holds power for a preset duration—typically 30‑60 seconds—before automatically turning off the output. This helps conserve energy and prolong the life of connected LEDs or low‑power electronics. The unit supports a wide input voltage range from 5V to 24V DC, providing flexibility for various power adapters or USB power banks. Its 2A current rating allows it to drive multiple small devices simultaneously, as long as total load stays within limits.

Crafted with a straightforward plug‑and‑play design, no additional wiring or programming is required. The sensor housing includes a small adjustment screw for sensitivity and light threshold, enabling users to fine‑tune activation based on ambient brightness. This model works best in indoor environments such as cabinets, closets, hallways, or under‑desk areas where automatic lighting upon entry is desired. It is also compatible with many 5V USB‑powered strips and 12V LED modules commonly used in DIY projects.

The white color and compact footprint allow it to blend discreetly into most setups without obstructing adjacent USB ports. Durability is supported by a solid casing that resists minor impacts and dust ingress, though the unit is not fully waterproof and should be kept away from moisture. The copper‑alloy USB pins provide consistent electrical contact, and the output jack uses a standard DC barrel connector (5.5 x 2.1mm) for easy connection to LED strips or other accessories. Overcurrent protection is built into the design to prevent damage from short circuits or load spikes.

The entire assembly is lightweight, weighing approximately 30 grams, making it easy to install or reposition as needed. Given its low retail price, this motion sensor switch offers a very affordable entry point for automating small lighting setups. The combination of automatic on/off functionality, wide voltage compatibility, and straightforward installation delivers practical value for hobbyists and home improvement enthusiasts. While not intended for high‑power devices, it performs reliably for its rated capacity and brings convenience to frequently accessed spaces without requiring manual switching.