ITEM NAME:10 Pairs Universal LED IR Infrared Emitter Emission and Receiver Diode DIY Store Home | Home & Garden | Vehicle Parts & Accessories | Industrial | Computers/Tablets & Networking | Pet Supplies | Phones & Accessories | Electronics | Home Entertainment | Toys, Hobbies | Health & Beauty .like-pro-float .like-pro-price-both{clear: both;.Infrared Receiver: - Model: CHQ1838. - Emission Angle: 20Â °/45Â °/60Â °. - Lead Pin Pitch: 2.53mm. Transmitting Tubes: - Current: 20mA (constant current). - Transmitting Distance: 12--15M. - Crest length (WD): 940nm.