Key benefits Bright and steady indication with a 3 mm LED and a yellow clear lens for clear visibility in tight spaces. Reliable operation from DC 35V sources, thanks to a builtin resistor that supports stable performance. Simple polarity wiring: red is positive and black is negative, making integration straightforward. Flexible wiring: each LED comes with a 20 cm long flexible lead for easy placement in compact projects. Energy efficient design with low power consumption, suitable for batterypowered applications. What you get Package includes 20 pieces of 3 mm LED bulbs with a yellow clear lens. Each LED unit features a 20 cm flexible wire for convenient mounting and wiring. Specifications and features LED size: 3 mm Lens color: yellow clear Drive voltage: DC 35V Wire length: 20 cm Polarity: Red (positive), Black (negative) Builtin resistor for energysaving, low power consumption, and stable performance Quantity: 20 pieces per package How to use Connect the red lead to the positive DC supply (35V) and the black lead to ground. Use with compatible lowvoltage DC sources such as microcontroller projects or small electronic assemblies. The builtin resistor reduces the need for external components in typical lowvoltage indicator applications. Typical applications Microcontroller indicators: status lights for Arduino, ESP32, PIC, and similar 35V projects. Small device indicators: power, fault, or mode indicators in compact electronics. Craft and model work: decorative lighting or visibility markers in DIY kits and educational projects. Notes Ensure your supply voltage is within the 35V DC range for reliable operation. While designed for low power, verify total current draw if using multiple LEDs in parallel on a single supply. This description preserves the original product's brand, specifications, models, and functions while presenting a clear, customerfriendly overview focused on benefits, practical usage, and realworld applications.