---
title: "Products — 2d 28w 4 pin light bulb - Flapen"
canonical_url: "https://flapen.com/research/uk/lighting/2d-28w-4-pin-light-bulb/products"
last_updated: "2026-07-31T15:34:11.296Z"
locale: en
meta:
  description: "Niche score 38/100 · £66K/yr market · 42K searches/yr · £8.03 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 38/100 · £66K/yr market · 42K searches/yr · £8.03 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Products — 2d 28w 4 pin light bulb - Flapen"
---

# **2d 28w 4 pin light bulb**

**Skip it**

Prices mostly outside the sweet spot ($5.88–$11.67) — this niche doesn't clear our bar today.

Market size 16Growth 6Conversion 100Competition 26Returns 20Price range 0Avg price 22Brand share 48Review moat 67Quality gap 94

**Conversion**

**Incredible****19.7%**

search→purchase rate — share of searches ending in a sale

**Quality gap**

**Great****4.0★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Good****831.5**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Okay****76%**

top-5 brand share — brands hold most of the demand

**Competition**

**Okay****69%**

top-5 click share — leaders hold, buyers still browse

**Avg price**

**Bad****£8.03**

avg listing price — sweet spot $15–$100

**Returns**

**Bad****6.5%**

return rate — above 5% kills the launch gate

**Market size**

**Bad****£66K**

£66K/yr · 42K searches

**Growth**

**Bad****-38.1%**

90-day search growth — must beat 0% to launch

**Price range**

**Bad****£5.88–£11.67**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=uk&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=uk&signal=high_returns "Return rate > 5%")