The present disclosure relates to a heat dissipation device (16) for telecommunications equipment. The device (16) includes an enclosed conduit (48) extending between an open first end (50) and an open second end (52), wherein the open first end (50) is configured to be coupled to a heat outlet (44) of a telecommunications fixture (12) and the open second end (52) is configured to be coupled to a heat outlet (38) of a telecommunications device (14) mounted within the telecommunications fixture (12) so as to provide a heat transfer path between the heat outlets (38, 44) of the telecommunications device (14) and the telecommunications fixture (12). An outer dimension (54) of the open second end (52) is adjustable in size for corresponding to a variety of different sized heat outlets (38) of different telecommunications devices (14) that can be mounted within the telecommunications fixture (12). The enclosed conduit (48) is defined by a flexible body (56) for maintaining the heat transfer path between the heat o