Features: Comprehensive Voltage Regulator Kit This set includes 39pcs L317 L7824TO 220 positive voltage regulators, for various projects requiring stable power management. Efficient Designing Featuring modular components and easy to understand connection, this kit ensures quick setting and customization, with high quality materials that resist oxidation and heat. For Electronics Enthusiasts Perfect for DIYers passionate about electronics and circuit building, as well as engineers and technicians needing reliabled power regulation solution. Application Scenario: Suitable for electronics, DIY projects control and auditory equipment, and stage setting requiring stable power supply for smooth operates. Enhances your electronic projects with this adaptable voltages regulator kit, to support complex circuitry in educational and other environment. Specifications: Product Name: Positive Voltages Regulator Model: 11Values including: lm317t/1.5a/5pcs, l7805/1.2a/10pcs, l7806/1.2a/2pcs, l7808/1.2a/2pcs, l7809/1.2a/2pcs, l7810/1.2a/2pcs. L7815/1.2a/2pcs, L7818/1.2a/2pcs, L7824/1.2a/2pcs, TO-220 radiator /5 PCs Heatsink Size about 20x15x10mm/ 0.78x0.59x0.39in Quantity：39Pcs/Set Package Includes: 1Set Positive Voltage Regulator note: Due to the problem of lighting effects, there is certain tolerances in product, please understand. Please allow 0-1cm error due to the measurement.