Track lighting system and luminaire with multiple leds

A method of retrofitting a lighting system, comprising:

• providing a lighting assembly including a plurality of modular luminaire devices, one or more of the modular luminaire devices comprising a light source and a housing;
• removing an existing lighting assembly from a pre-installed support structure;
• installing the lighting assembly within the pre-installed support structure without removing the support structure;
• and
• securing each modular luminaire device within the pre-installed support structure such that the housing of each luminaire device is at least partially contained within the support structure.

A lighting assembly for use in retrofitting a pre-installed track lighting system, the lighting assembly comprising:

• a plurality of modular luminaire devices, each modular luminaire device comprising a light source and a housing;
• and
• a flexible conductor electrically coupling each modular luminaire device of the plurality of modular luminaire devices to form a light string,
• the housing of the modular luminaire devices at least partially positionable(ed) within a pre-installed track lighting system when the light string is retrofit in the pre-installed track lighting system.