4 Channel 5V Solid State Relay Module 300K These are Carbon Film Resistor

These are Carbon Film Resistor with a value of 75k ohm 1/2W and tolerance of ±5%

2 V   VIH=3

low open-loop high-frequency output impedance

Its Display count is 2000

This servo can rotate approximately 180° ( 90 degrees in each direction) and works like the standard kinds but smaller

4 Channel 5V Solid State Relay Module 300K These are Carbon Film ResistorThe Solid State Relay (SSR) offers many advantages over the classic mechanical relay: it has a longer life, a considerably faster switch on off speed, and no noise. It also has better vibration and mechanical shock resistance, as well as better moisture resistance. This Solid State Relay Module includes four channels, each of which may work independently and be controlled. It is based on the Omron G3MB and is capable of controlling current up to