diff --git a/Hardware_developement/6-Switch/Readme.txt b/Hardware_developement/6-Switch/Readme.txt
index 8c538a1..a8b5d86 100644
--- a/Hardware_developement/6-Switch/Readme.txt
+++ b/Hardware_developement/6-Switch/Readme.txt
@@ -1,2 +1,12 @@
-Currently, we are testing several reed relays for high voltage. The photos of tested relays are included. 
-
+Currently, we are testing several reed relays for high voltage. The photos of tested relays are included. 
+
+Considered switches are
+
+Reed Relays high volt reed relay A-NO 50W 3V 5VDC 
+https://eu.mouser.com/ProductDetail/MEDER-electronic-Standex/HM05-1A69-08?qs=i5ZBw0Ef3zpYTgrC8SsmkA%3D%3D
+
+Reed Relays 24VDC 50W 1 FORM A 
+https://eu.mouser.com/ProductDetail/MEDER-electronic-Standex/H24-1A69?qs=k5V78Jg%2Feq4W2mMBAX%2FBSQ%3D%3D
+
+RELAY REED SPST-NO 2A 5V 10kV
+https://www.digikey.com/en/products/detail/sensata-cynergy3/DAT70515F-HR/5067361