You will need to contact the Public Health Team and provide the following details: -
Can I remain anonymous following my complaint?
Unlike other types of nuisance complaints that the department investigates, it is unlikely that the confidentiality of complainants can be maintained during an investigation into artificial light nuisance, since the person causing the nuisance may want specific advice from the Department on what adjustments are required to the lighting in order to avoid causing the nuisance, and this is likely to entail making reference to the affected property.