ITEM NAME:NE555 Frequency Capacity Adjustable Module Square Wave Generator F2O3 NE555 Frequency Capacity Adjustable Module Square Wave Generator F2O3 Main Chip: NE555 Input voltage: 5V-15VDC. when the power supply 5V, may be the output current 15 mA around and when 12V power supply, the output current 35 mA . Input current: Greater than = 100MA Output amplitude: 4.2VV PP to 11.4V V PP. (Various input voltage, the output amplitude differ) Maximum output current: Greater than = 15MA (at 5V power supply, V PP bigger than 50%), Greater than = 35 mA (at 12 V power supply, V-PP greater than 50%) output with LED display (low level, LED lights, high level, LED off, low frequency, the LED) flashes; Size: approx 3.1 x 2.4 cm/ 1.22 x 0.94 inch; Package Contents: 1 x NE555 signal generator Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm..Main Chip: NE555. output with LED display (low level, LED lights, high level, LED off, low frequency, the LED) flashes;.