By RedCrazyLady21/07/2019My husband and I bought these to control the on/off function for a lighting kit we put in our Redcat Gen 8 Scout II Trail RC trucks. Having that third channel is handy. These Fly Sky GT3C's are so easy to control and use. I like that you can program several models of RCs into them and save all that space that used to be taken up by controllers. Now one controller runs several vehicles saving us shelf space, batteries (at an average of 8 AA batteries a piece...they add up!) I also like the power button