Interlight — Case Study · Noetic Creative
Noetic CreativeInterlight
Email MarketingAutomationSegmentation

A channel they
had never used.

Interlight had no email programme. Six months later it was a revenue channel with open rates above 50% and a click rate that had gone up fivefold.

The Interlight automation build, branched by browse and purchase behaviour
6%+Automation clicks 50%+Open rate
Behaviour branches · Where the 6% automation click rate comes from
ServicesEmail Marketing · Automation · Segmentation
IndustryeCommerce · Bulbs & batteries
50%+Open rate, held consistently
1% → 5%Average click rate
+25.6%Rise in conversion rate
<0.5%Unsubscribe rate
The Brief

A fiercely competitive category where the customer already knows what a bulb costs. So the email has to earn the click.

Interlight is a prominent online retailer specialising in bulbs and batteries, operating in a market where customers compare on price in seconds and loyalty is thin.

Email had never been deployed as a revenue-driving channel. That made it the largest unclaimed surface the business had — and the one with the fewest assumptions baked in.

The Strategy

Three levers,
pulled together.

None of them work alone.

01

A/B testing

Subject lines, content and calls-to-action tested systematically rather than guessed, so every send taught the next one something.

02

Customer behaviour analysis

What people opened, clicked and ignored, read as behaviour rather than as a report to file.

03

Personalisation and hyper-segmentation

The list held apart by behaviour, so the message could be written for what someone actually did.

The Creative

Written for the
thumb.

Most of this category is read on a phone, standing in front of a fitting that has just failed. The template was built for that moment.

Interlight automation email on a phone, triggered by browse behaviour
Interlight campaign email as it renders on a phone: product, price and one action
One action per send

The hierarchy makes the next tap immediately clear.

Triggered, not blasted

Behaviour decides who receives the message and when.

Built for urgency

Product, price and CTA survive the smallest screen.

Personalised Automation

The flows
underneath.

Automations out-performed campaigns on click rate by three to one, which is what told us where the programme should live.

Interlight campaign reporting: open, click and unsubscribe by send
Read every send · Open, click and unsubscribe, per campaign
Method

How it was run.

01

Rigorous A/B testing across subject lines, content and CTAs to find the combinations that worked

02

Methodical testing across segments of the list, not across the list as a whole

03

Personalised automation triggered on behaviour rather than on the calendar

04

Reporting read per send, so each one informed the next

Against Where It Started

From nothing
to a channel.

The marker on each track is where the programme began. The bar is where it settled.

Outcome

Past the
benchmarks.

Average click rate1% → 5%+

A fivefold change in the channel's everyday performance.

Total click growth+344%

The clearest signal that testing, reading and segmenting were compounding.

Open rate50%+

Held consistently.

Conversion+25.6%

More visits converted.

List health<0.5%

Unsubscribes stayed low while engagement climbed.

A new channel is not a risk when every send is a test.
Straight from the Source
Deploying email as a new revenue driving channel was new to us. Noetic’s team did not disappoint and kept us engaged in the process without letting it become deadweight or compromise results.
Bill Gray Bill GrayProject Manager, Interlight
Martech Stack

The toolsbehind the work.

  • BigCommerce
  • Google Ads
  • Klaviyo
  • GA4
  • Looker Studio
Project Summary

The channel was not the hard part. Segmenting it was.

Growth surpassing industry benchmarks came from one discipline applied without shortcuts: test, read, segment, send again.

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