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Cluster for Light Bulb Intensity Control

Hi,

I have a Tradfri IKEA Light Bulb 1000LM E27, which has controllable intensity. Would like to ask what cluster I can use via AF_DATA_REQUEST and Z-Tool to control the Intensity of the light bulb. At first understanding it is supposed to be the 0x0300 but I'm not sure. I have 0xC3 as return value which, If i'm not wrong, means "Unsupported Cluster".

Additional Informations: Can control the ON/OFF (Cluster 0x0006) Nicely and smoothly

<TX>12:16:56.43 COM4 AF_DATA_REQUEST (0x2401) (MOVE TO SATURATION COMMAND)
    DstAddr: 0xCC39
    DestEndpoint: 0x01
    SrcEndpoint: 0x01
    ClusterID: 0x0300
    TransID: 0x00
    Options: 0x00
    Radius: 0x1E
    Len: 0x06
    Data: ...... (0x01, 0x01, 0x03, 0x10, 0x00, 0x01)

<RX>12:16:56.44 COM4 AF_DATA_REQUEST_SRSP (0x6401)
    Status: afStatus_SUCCESS (0x0)

<RX>12:16:56.45 COM4 AF_DATA_CONFIRM (0x4480)
    Status: afStatus_SUCCESS (0x0)
    Endpoint: 0x01
    TransID: 0x00

<RX>12:16:56.46 COM4 ZDO_SRC_RTG_IND (0x45C4)
    DstAddr: 0xCC39
    Relay Count: 0x00
    Relay List

<RX>12:16:56.51 COM4 AF_INCOMING_MSG (0x4481)
    GroupID: 0x0000
    ClusterID: 0x0300
    SrcAddr: 0xCC39
    SrcEndpoint: 0x01
    DstEndpoint: 0x01
    WasBroadcast: 0x00
    LinkQuality: 0x24
    SecurityUse: 0x00
    Timestamp: 0x001E7203
    TransSeqNumber: 0x00
    Len: 0x05
    Data: ..... (0x08, 0x01, 0x0B, 0x03, 0xC3)