1 / 7Formosa Lights C7-Incandescent 25 ft Multicolour C7 String Lights
Formosa Lights C7-Incandescent is a 25-foot corded string of 25 multicolour incandescent C7 bulbs for seasonal and patio lighting. Its end-to-end connector allows up to three sets to be linked, while customer feedback also flags heat and mixed views on lifespan and quality.
At a glance
- The 25-foot set has 25 C7 incandescent bulbs on green wire, with 6-inch bulb spacing.
- End-to-end connectors are described as allowing up to three sets, or 75 lights, on one plug.
- Built-in clips on the sockets are described for indoor and outdoor hanging.
- The product listing identifies the light set for indoor use, while feature copy also claims indoor and outdoor suitability.
Reference price: $39.86
Price checked: Nov 14, 2026
View offerAhead of Black FridayExplore the selectionPros and cons
Pros
- The 25 bulbs and stated spacing provide a defined layout for a short run of seasonal or patio lighting.
- Linking up to three sets can extend the run without requiring separate plugs, subject to the listing's stated limit.
- Built-in socket clips may simplify attachment where suitable hanging points are available.
Cons
- Incandescent bulbs are reported by customers to get very hot during use, a relevant trade-off for installation and placement.
- Customer feedback is mixed on lifespan and overall quality, so the listed lifespan claim should not be treated as a guaranteed result.
Technical specifications
26 specifications| Brand | Formosa Lights |
|---|---|
| Model | C7-Incandescent |
| Bulb type | Incandescent |
|---|---|
| Bulb shape and size | C7 |
| Bulb base | E12 |
| Bulb count | 25 |
| Light colour | Multicolor |
| Colour description | Ceramic Multicolor |
| Layout | Linear |
| Bulb spacing | 6in |
| Wire colour and length | 25ft green wire |
| String length | 25 feet |
|---|---|
| Lead wire | 12in |
| Voltage | 120 volts |
| Wattage | 125 watts |
| Power configuration | Corded Electric |
| Control methods listed | Remote |
| Linking limit | up to 3 sets (75 lights total) on one plug |
|---|---|
| Water resistance listed | Waterproof |
| Listed use | Indoor |
| Style | Classic |
|---|---|
| Theme | Easter |
| Occasion | Christmas |
| Seasons | All Seasons |
| Claimed bulb lifespan | up to 1500-hour lifespan |
| Manufacturer warranty description | 1 Year |
What to know before buying
Listing details to confirm
Listing details are inconsistent: the product fields say indoor use, while the title and feature copy describe indoor and outdoor use. The listing also calls the bulbs ceramic in some places but lists plastic as the material, gives a total wattage of 125 watts alongside 25 bulbs described as 5W each, and describes the colour as both multicolour and ceramic multicolour. Confirm the selected listing's use rating, materials and electrical details before purchase.
What’s in the box
Included- 25 string lights
- Spare fuse
Who is it for?
A good fit for
- Buyers seeking a 25-foot multicolour incandescent string with C7 bulbs and E12 bases.
- Seasonal decorators who want clip-equipped sockets and the option to link up to three sets.
Less suited to
- Buyers who prefer cool-running lighting, given customer reports that the bulbs get very hot.
- Those who need unambiguous confirmation of outdoor suitability, bulb material or electrical specifications before choosing a set.

Customer reviews on Amazon
- 5 stars
59% 59% - 4 stars
18% 18% - 3 stars
8% 8% - 2 stars
4% 4% - 1 star
11% 11%
Customer feedback appreciates the colours, but reports that the lights get very hot and expresses concern about value. Views on lifespan and overall quality are mixed. The heat reports matter particularly because this is an incandescent set, while the listing's claimed lifespan of up to 1500 hours should not be read as a guarantee. Aggregate ratings are broadly positive overall, but do not resolve those specific concerns.
Positive themes
- Customers are reported to appreciate the light colours.
Negative themes
- Customer feedback reports that the lights get very hot during use.
- Feedback expresses concern about value for money.
Mixed feedback
- Customer views on lifespan and overall quality are mixed.
Frequently asked questions
How many bulbs and how long is the string?
The listing specifies 25 C7 bulbs on a 25-foot string, with 6-inch spacing.
Can the string be extended?
The listing says its end-to-end connectors allow up to three sets, or 75 lights, on one plug.
Is it suitable for outdoor use?
The title and feature copy claim indoor and outdoor use, but the product details field says indoor. Confirm the selected listing's use rating before installing it outdoors.
What should I know about heat and lifespan?
Customer feedback reports that the bulbs get very hot and gives mixed views on lifespan. The listing claims up to 1500-hour lifespan, but that is not a guaranteed result.

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