---
title: "C9 Replacement Bulbs — $284K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/c9-replacement-bulbs"
last_updated: "2026-08-06T00:30:10.907Z"
locale: en
meta:
description: "Niche score 57/100 · $284K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 57/100 · $284K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "C9 Replacement Bulbs — $284K/yr Amazon US Niche (2026) - Flapen"
---
# **c9 replacement bulbs**
**Worth a look**
Shows a fragmented shelf (top 5 take 26% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 50Growth 25Conversion 56Competition 89Returns 20Price range 83Avg price 85Brand share 84Review moat 71Quality gap 42
**Competition**
**Great****26%**
top-5 click share — an open shelf
**Avg price**
**Great****$18.97**
avg listing price — sweet spot $15–$100
**Brand share**
**Great****51%**
top-5 brand share — no brand owns this niche
**Price range**
**Great****$11.29–$35.84**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****675.81**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****4.7%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****$284K**
$284K/yr · 320K searches
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Okay****+0.1%**
90-day search growth — must beat 0% to launch
**Returns**
**Bad****6.5%**
return rate — above 5% kills the launch gate
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, c9 replacement bulbs is a $284K/yr Amazon United States market (320K searches/yr). The top 5 brands hold 51% of demand. Demand peaks in Nov–Dec. Verdict: Worth a look — 57/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **c9 replacement bulbs market data**
- **Units sold / yr**
- **25K–30K**
- avg 250–500/product
- **Revenue / yr**
- **$474K–$569K**
- units × avg price
- **Conversion rate**
- **4.7%**
- **Avg BSR**
- **#2,938**
- **Page quality**
- **0%**
- **Prime**
- **97%**
- **Sponsored**
- **91%**
- **Out of stock**
- **22.1%**
- **Avg brand age**
- **59 months**
- **Avg seller age**
- **205 days**
## **Competition & brand share**
Clicks spread well past the top 5 (26% combined) — an open shelf where new products get seen.
**Brands**
**37 **▼falling
**Sellers**
**42**
**Top-5 brand share**
**51%**
Top 20: 88%
**Top-5 click share**
**26%**
Top 20: 61%
**Open market**
**43%**
- Novelty Lights17% - Meconard11% - GOOTHY11% - Kivonfa6% - Brightown6% - CXLHO5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +0.1% search growth over the last 90 days.
45K35KSpike '24Holiday '24Spike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Nov, Dec · busiest ÷ quietest = 36.6×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/c9-replacement-bulbs/trend)
## **Top c9 replacement bulbs search terms**
- **c9 replacement bulbs**47K/yr+21.0%5.9% conv. - **c9 bulbs**95K/yr-38.9%3.3% conv. - **c9 led bulbs**61K/yr-19.7%2.5% conv. - **c9 led replacement bulbs**16K/yr+45.7%3.1% conv. - **c9 light bulbs**13K/yr+12.6%4.1% conv. - **led c9 bulbs**11K/yr+23.7%1.4% conv. - **c9 christmas light bulbs**17K/yr+7.4%3.7% conv. - **c9 bulb**5K/yr+33.7%2.4% conv. - **c9 colored bulbs**3K/yr+27.6%0.5% conv. - **c9 led**7K/yr-16.1%1.1% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/c9-replacement-bulbs/search-terms)
## **Top c9 replacement bulbs products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%2%$6K4%$11K6%$17K8%$23K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**25 Pack C9 Multicolor Christmas Light Bulbs C9 Multicolor Replacement Bulbs for Outdoor Patio Christmas String Lights 7W Incandescent Night Light Bulbs C9/E17 Intermediate Base Bulb 120V 7W bulb**GOOTHY**$17.15**4.6★380 rev](https://www.amazon.com/dp/B0BQXT9XQP) [2**25 Pack C9 Replacement Bulbs 7W Incandescent Clear Night Light Bulbs for Outdoor String Lights Clear Christmas Bulbs for Porch Patio Garden Wedding Decor Warm White E17 Intermediate Base**Kivonfa**$15.59**4.5★63 rev](https://www.amazon.com/dp/B0F7L8FT9V) [3**CXLHO 25 Pack C9 Bulbs Clear Replacement Bulbs Incandescent C9 Christmas Light Bulbs for Christmas String Light E17 Intermediate Base 7 Watt Clear**CXLHO**$15.01**4.7★166 rev](https://www.amazon.com/dp/B0C6XZC48X) [4**Novelty Lights 25 Pack C9 Ceramic Outdoor Christmas Replacement Bulbs Multi E17 Intermediate Base 7 Watt**Novelty Lights**$16.70**4.6★4,539 rev](https://www.amazon.com/dp/B004Q6JFBY) [5**BORT 50 Pack C9 LED Replacement Light Bulb C9 LED Bulbs for Christmas Outdoor String Lights E17 Intermediate Base Clear Plastic Commercial Grade Holiday Bulbs 2700K**BORT**$25.47**4.3★14 rev](https://www.amazon.com/dp/B0CHP19K1T)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Hobbynors C9 LED Replacement Bulbs 30-Pack Diamond Faceted Warm White Christmas Light Bulbs Shatterproof Bright Outdoor Holiday Lights for Roofline & Trees E17 Base**Hobbynors**$13.44**50 rev10mo ago](https://www.amazon.com/dp/B0FHVQK9Q5) [**Vruxuri 25 Pack C9 LED Christmas Light Bulbs C9 Replacement Bulbs Shatterproof Dimmable for Christmas String Lights C9/E17 Base Sockets Warm White**Vruxuri**$15.23**55 rev12mo ago](https://www.amazon.com/dp/B0FKT5LXXV) [**Vruxuri 25 Pack C9 LED Christmas Light Bulbs C9 Replacement Bulbs for Christmas String Lights Shatterproof Dimmable C9/E17 Base Sockets Warm White**Vruxuri**$17.55**45 rev12mo ago](https://www.amazon.com/dp/B0FKT9HS62) [**25 Pack C9 Replacement Bulbs 7W Incandescent Clear Night Light Bulbs for Outdoor String Lights Clear Christmas Bulbs for Porch Patio Garden Wedding Decor Warm White E17 Intermediate Base**Kivonfa**$15.59**63 rev1y ago](https://www.amazon.com/dp/B0F7L8FT9V) [**CHYSUPER 25Pack C9 Replacement Bulbs Clear Warm White LED Christmas Bulbs for Outdoor String Lights Patio Holiday Tree Decor Waterproof Shatterproof E17 Base**CHYSUPER**$12.30**17 rev1y ago](https://www.amazon.com/dp/B0DG8KZYPV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**BORT 50 Pack C9 LED Replacement Light Bulb C9 LED Bulbs for Christmas Outdoor String Lights E17 Intermediate Base Clear Plastic Commercial Grade Holiday Bulbs 2700K**BORT**$25.47**4.3★**▲ 1000%**](https://www.amazon.com/dp/B0CHP19K1T) [**Hobbynors C9 LED Replacement Bulbs 30-Pack Diamond Faceted Warm White Christmas Light Bulbs Shatterproof Bright Outdoor Holiday Lights for Roofline & Trees E17 Base**Hobbynors**$13.44**4.8★**▲ 756%**](https://www.amazon.com/dp/B0FHVQK9Q5) [**Novelty Lights 25 Pack C9 Ceramic Outdoor Christmas Replacement Bulbs Blue E17 Intermediate Base 7 Watt**Novelty Lights**$16.66**4.6★**▲ 745%**](https://www.amazon.com/dp/B004Q6HQJW) [**CHYSUPER 25Pack C9 Replacement Bulbs Clear Warm White LED Christmas Bulbs for Outdoor String Lights Patio Holiday Tree Decor Waterproof Shatterproof E17 Base**CHYSUPER**$12.30**3.5★**▲ 424%**](https://www.amazon.com/dp/B0DG8KZYPV) [**CHYParty 25 Pack C9 Replacement Bulbs Clear Warm White LED Christmas Light Bulbs for Outdoor Indoor String Lights Xmas Tree Wedding Party Home Decor**CHYParty**$13.85**4.6★**▲ 345%**](https://www.amazon.com/dp/B0DG5C1V96)
**~~View all trending →~~**
## **What buyers say about c9 replacement bulbs**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Brightness/Shine/Glow**30%
*“very nice and bright”*
**Value For Money**13%
*“worth every penny”*
**Color**11%
*“The colors are very vibrant”*
**Quality-Overall**10%
*“They seem well made”*
**Size-Overall**9%
*“Perfect match”*
**Advertised Vs Actual Product**4%
*“work as expected”*
**Durability**4%
*“are less likely to break”*
**Strength**2%
*“they are sturdy”*
**Assembly/Installation**2%
*“Installation was simple”*
**Efficiency**1%
*“Worked great”*
### **What buyers complain about **
**Color**25%
*“Color faded”*
**Size-Overall**22%
*“doesn't fit”*
**Brightness/Shine/Glow**7%
*“they didnt light up”*
**Functionality-Overall**6%
*“not all work”*
**Defective Material/Parts**6%
*“Damaged product”*
**Thickness**4%
*“A little thinner glass than the old days”*
**Suitable For Outdoor**2%
*“Dont purchase for outdoor”*
**Quality-Overall**2%
*“Terrible quality”*
**Value For Money**2%
*“the price is too high”*
**Hard Feel**2%
*“Its actually hard plastic and not glass”*
### **Top return reasons **
**Size-Overall**65%
**Bulb Flicker/Dimming/Color**7%
**Color**7%
**Advertised Vs Actual Product**6%
**Brightness/Shine/Glow**3%
**Value For Money**2%
**Functionality-Overall**2%
**Compatibility-Overall**2%
**Defective Material/Parts**2%
**Socket/Port/Plug**1%
## **Common questions**
- **Is c9 replacement bulbs profitable to sell on Amazon United States?**
- The niche generates $284K/yr across 74 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is +0.1%. Flapen's verdict: Worth a look (57/100).
- **How competitive is the c9 replacement bulbs niche?**
- 37 brands and 42 sellers compete. The top 5 products take 26% of clicks and top 5 brands hold 51% of demand.
- **What do buyers complain about in c9 replacement bulbs?**
- Top complaints mined from reviews: Color, Size-Overall, Brightness/Shine/Glow. The return rate is 6.5% — above our launch gate.
- **When does demand for c9 replacement bulbs peak?**
- Demand peaks in Nov–Dec; the busiest month runs 36.6× the quietest.
- **What does it cost to enter the c9 replacement bulbs niche?**
- Listings span $11.29–$35.84; the average listing price is $18.97 (sweet spot $15–$100). The average incumbent carries 676 reviews — the moat a new listing must climb.
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