IC-4 downlights and ceiling insulation (VEU Activity 48)

Guide · Updated 23 August 2026 · Ceiling Check · Independent, not government

If your Victorian home has older recessed lights, this is one of the most common reasons a VEU ceiling insulation job can’t go ahead — even when the rest of the house looks eligible.

Why non-IC downlights block Activity 48

Under the Activity 48 rules overseen by the Essential Services Commission, every luminaire in the ceiling being insulated must be classified and marked IC or IC-4 (per AS/NZS 60598.2.2).

Older non-IC fittings — including many halogen downlights — weren’t designed to be safely buried in insulation. Covering them is a fire and compliance risk. So until those lights are sorted, the insulation activity can’t create certificates.

What IC and IC-4 mean in plain English

• IC — “Insulation Contact”: the fitting is rated so insulation can touch it in the way the standard and manufacturer allow
• IC-4 — a modern insulation-contact classification you’ll often see on recessed LED downlights built for insulated ceilings
• Non-IC / CA80 / open halogen cans — typically not okay to cover; these are the usual blockers for VEU ceiling insulation

Look for the mark on the fitting, packaging, or install sticker. If you’re not sure, an electrician or accredited insulation provider can identify them during a pre-install electrical safety check.

Your practical options

1. Upgrade the lights first — replace non-IC recessed lights with IC or IC-4 rated fittings (electrician work), then book the insulation with a VEU-accredited provider
2. Ask the provider for a combined plan — some accredited businesses can coordinate lighting + insulation sequencing so you’re certificate-ready
3. Don’t DIY-cover old cans — stuffing batts over non-IC lights to “get the discount” is unsafe and won’t satisfy Activity 48

Lighting upgrades are generally a separate cost from the insulation incentive. The VEU discount applies to the eligible insulation activity once the ceiling meets the rules — it isn’t a promise that light replacements are free.

How this fits Stage 1 and Stage 2

The IC/IC-4 rule applies whenever Activity 48 is delivered — whether you’re in Stage 1 (public/community housing from 14 April 2026) or waiting for Stage 2 (all eligible homes from 1 October 2026). Private homes can still upgrade lights before Stage 2 so you’re ready on day one. More: Stage 2 opens 1 October 2026.

Eligibility beyond lights

Lights are only one gate. You’ll also need the right building class, under-insulated ceiling (avg R < 2.0), and a ceiling not built/renovated in the last 5 years — with work via an accredited provider. Full overview: VEU ceiling insulation eligibility.

FAQs

Can I leave a clearance gap around old downlights instead?

Activity 48’s lighting rule is about IC/IC-4 classification of the luminaires — not “leave a gap and hope.” Don’t rely on folk fixes. Use rated fittings and follow the accredited provider’s electrical assessment.

Are all LED downlights IC-4?

No. Buy fittings that are explicitly marked IC or IC-4. “LED” alone doesn’t mean insulation-safe.

Is Ceiling Check telling me to buy specific lights?

No. We’re an independent eligibility checker (Arvo Labs), not a lighting retailer or government body. Your electrician / accredited provider should specify compliant products for your ceiling.

Ceiling Check · Thareja Pty Ltd t/a Arvo Labs · ABN 55 674 053 242 · hello@arvolabs.com.au · Privacy
Not affiliated with the Essential Services Commission or Victorian Government.