Hey makers and electronics hobbyists! This uxcell photoresistor kit is perfect for all your light-sensing projects. You get 20 pieces of GL5549 light dependent resistors (LDRs) that are seriously versatile for anything that needs to detect light levels. These little 5mm components work by changing their resistance based on light intensity - we're talking super high resistance in the dark (up to 5MΩ) that drops dramatically down to just 100-200KΩ when exposed to light. The response time is pretty quick too - 20ms rise and 30ms fall time - so they react almost instantly to light changes. Perfect for building automatic night lights, light-activated switches, sunrise alarms, security systems, or any project where you need something to happen when light conditions change. The peak wavelength sensitivity is around 540nm, making them ideal for detecting visible light. They come neatly packaged in a free storage box to keep them organized and protected from damage. Whether you're a student learning about electronics, a hobbyist building Arduino projects, or a professional needing reliable light sensors, these LDRs deliver consistent performance. They're way more affordable than buying individual photoresistors, and having 20 pieces means you can experiment freely without worrying about wasting components. The quality is solid with consistent specifications across all units. If you've been wanting to add light-sensing capabilities to your projects but weren't sure where to start, this kit gives you everything you need to dive right in. Seriously, for the price, you can't beat the value and versatility these little sensors offer!
Free 30-day returns 
Free 30-day returns
