There are two image types at the time of ordering any Cisco LAP. The two images can be used in situations given below-

S3G2RK9W8-12423JY IOS Wireless LAN Recovery-should be used for Controller based deployment

AND

SWLAP3600I-MESH-K9 Enterprise Wireless Mesh – AP3600I Controller-based SW Image-used for Wireless MESH deployments only