[Parameter specification] Lamp switch limit voltage specification is 250V, current limit is 2A, contact resistance: 20 and insulation resistance: 200M. This switch is suitable for low-voltage, low-current household appliances with LED circuits, such as desk lamps, bedside lamps and small fans. Matte texture and concave design According to comfort human fingers, the black surface of the middle switch has a concave "arc". The bottom is flat. As a result, the hand is comfortable and does not get tired when holding the switch. The matte design is not only non-slip, but also does not leave visible fingerprints. [Applicable cable diameter] The diameter of the cable entering the two ends of the cable switch of the light switch is 1.5mm2, suitable for cables with a cable diameter of 1.5mm2 suitable. Please confirm the installation wire size before purchasing this switch. Easy Screwless InstallationThe middle rocker switch has a "snap-on" design, which can be turned on and off without a screwdriver . Wrap the wires around the metal prongs at both ends of the switch and use a hammer to combine the switches for better closure. Wide UsageThe middle black 2 pin switch is not only for most desktop lamps, small fans and LED circuits, and other micro-voltage/micro-current household appliances. It can also be used for school teaching material.