Update
Minimum housing standards came into effect for new tenancies (including renewed tenancy agreements) from 1 September 2023 and for all remaining tenancies from 1 September 2024.
The supply and replacement of light bulbs is not specified in the Act. Any arrangement about light bulbs should be included in the special terms of the tenancy agreement.
Generally, the property manager/owner may be responsible for maintaining specialised bulbs and the tenant may be responsible for the replacement of everyday bulbs.
If changing a bulb requires specialist knowledge or equipment, it may be part of the property manager/owner's responsibility to maintain the property.