The size of your window shade determines the motor that will be used. The typical battery operated motors can only handle small window sizes. Larger window shades spanning more than 72" in width and 84" in length require heavy duty motors. The quietest and most reliable motors in the industry are Somfy and QMotion. These motors handle shades up to 144" in width and 144" in length (and larger with special order). Palm Springs, and the desert in general (La Quinta, Rancho Mirage, Indian Wells, etc.), have some of the largest windows and the most intense heat in the world, which can effect motor and battery life. The industry standard is a 5 year lifetime warranty. Motors typically last longer depending on usage. More importantly, when the inevitable day comes that you do need service, repair, or replacement you'll be glad bought locally from Lifetime Blinds because we never charge for service calls.