Arduino TM1638 LED display module 8-bit digital tube HiLetgo TM1638 8 Bits Digital LED Tube Display Module with 8 LEDs 8 Button keys for AVR Arduino ARM

Size:75mmx48mm/2.95"x1.89"(inch) (approx)
The rated voltage: DC12V
Voltage range: DC7.0 V-13.6 V
The rated speed: 9500 R.P.M
The input power: 0.24 A
Temperature range:-10.. 70 ° C
Txpect life: 25 ° C L10 when expected life 50000 hours
Bearing structure: free maintenance dual ball bearings
Rotation direction: the wind from stents place eduction, facing the rotor counter-clockwise
The wiring way: + red-black signal: blue (blue line, the alarm line speed, it is necessary to pay attention to). Line about 20 cm long
The electric motor protection : overload protection, wrong level protection and stall lock current protection
Minimum wind pressure : 0.. 120 Pa
Noise index : 41.9 dB (A)
Material qualitative material: glass fiber reinforced plastic, PBT shell, PA blades
Function explain : electronic reversing the rotor dc fans, complete electronic directional control components