Nilight - 50005R Heat Shrink 2:1 Electric Insulation Tube Kit 45mm Flame Retardant Wrap Cable Sleeve 560pcs 5 Colors 12 Sizes with Storage Box
Quick take
Nilight 50005R is a 560-piece heat shrink tubing assortment (12 internal diameters, 5 colors) for insulation, wire bundling, color coding, and mechanical protection. It uses polyolefin with a 2:1 shrink ratio, and it’s intended to shrink quickly when heated (around 70°C). The main caveat is that it does not use an adhesive-lined style, so it may not be the right pick if you specifically need a seal that bonds to the wire.
Pros and cons
Pros
- Large assortment: 560 pieces across 12 sizes and 5 colors, organized in a storage box
- 2:1 shrink ratio for a tighter fit over a range of wire sizes
- Flame-retardant polyolefin with stated dielectric strength (15KV/mm) and anti-aging resistance
- Works for insulation, wire bundling, color coding, and daily repairs
Cons
- No adhesive-lined interior for sealing, so it’s better for shrink-fit coverage than “bonded” weatherproof joints
- Each tube length is 45mm, so very long runs may require additional pieces or overlap
What buyers think
Buyer feedback for this kit is limited in detail, but the recurring themes focus on variety, organization, and practical performance. Shoppers commonly mention that the assortment covers multiple sizes, the tubing shrinks as expected, and it’s easy to find the right piece thanks to the included storage organization. Review evidence also highlights a notable difference versus some other heat shrink types, specifically that this kit is not adhesive-lined, which some buyers explicitly wanted for their use case.
What this heat shrink kit is for
This tubing kit is meant for work where you want heat-shrink coverage to improve safety and organization. Typical uses include insulating exposed wire runs, bundling cables, adding color coding, protecting wire or cable joints, and handling everyday repairs where you can apply heat and let the tubing conform tightly.
Key specs that affect real-world fit
Shrink ratio: 2:1
A 2:1 shrink ratio helps the tubing reduce to about half the original diameter when heated. That matters for choosing the right “starting size” so the finished shrink is snug over your wire or connection. This is especially helpful if you work with a range of wire gauges and want one kit that covers multiple common diameters.
Sizes and length
The kit includes 45mm length pieces in 12 internal diameters: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 7mm, 10mm, and 13mm. This range supports both smaller signal/connector work and larger cable bundling or thicker conductor projects, though all pieces share the same 45mm length.
Material and safety-oriented features
It’s made from polyolefin and is described as flame-retardant, with acid and alkali resistance and anti-aging characteristics. It also lists a dielectric strength of 15KV/mm, which is relevant when insulation is a priority.
Pros and cons in plain English
When this kit makes sense
- You want a multi-size heat shrink drawer kit: 560 pieces in 5 colors makes it easier to match diameters and keep cables organized.
- You’re doing routine insulation and cable management: The stated shrink behavior and typical uses align well with DIY repairs and workshop projects.
- You don’t need adhesive-lined sealing: If you prefer shrink-fit coverage without bonding agents, this can fit that requirement.
When you should look elsewhere
- You need adhesive-lined tubing for sealing: This kit is not positioned as adhesive-lined, so it may not provide the kind of bonded, weather-resistant closure some jobs require.
- You routinely need long continuous coverage: At 45mm per piece, you may end up overlapping tubes for longer runs.
Buying guide: how to choose the right heat shrink size
Start by measuring the outside diameter of what you’ll cover (wire, connector, or joint). Then pick a tubing internal diameter that, after shrinking, matches snugly around it. With a 2:1 shrink ratio, the selection is usually about achieving a tight final fit, not just a loose “covers it” fit. If you’re between sizes, a snugger finished diameter generally holds better for insulation and bundling, but you still want it to slide on before heating.
Verdict: is Nilight - 50005R worth it?
The Nilight 50005R kit is a solid choice if you want an organized, budget-friendly assortment of non-adhesive polyolefin heat shrink tubing with a true 2:1 shrink ratio, broad size coverage, and multiple colors for cable identification. It’s less of a fit if you need adhesive-lined sealing or long continuous tube lengths, since it’s designed more for shrink-fit insulation and protection than bonded, watertight joints.
FAQ
Does this heat shrink kit have adhesive inside?
It is positioned as a non-adhesive style heat shrink tubing kit, so it is aimed at shrink-fit coverage rather than adhesive-lined bonding.
What shrink ratio is it?
The kit uses a 2:1 shrink ratio, meaning the tubing contracts to about half its original diameter when heated.
What sizes are included?
There are 12 sizes total, with internal diameters of 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 7mm, 10mm, and 13mm. Each tube length is 45mm.
How many colors are included?
The assortment includes 5 colors.
Is it suitable for electrical insulation and wire bundling?
Yes, it’s designed for electrical insulation, wire bundling, color coding, mechanical protection, and wire or cable joint protection and repairs.
How quickly does it shrink?
It’s intended to shrink rapidly when exposed to heat for a few seconds around 70°C.
Specifications
| Product Title | Nilight - 50005R Heat Shrink 2:1 Electric Insulation Tube Kit 45mm Flame Retardant Wrap Cable Sleeve 560pcs 5 Colors 12 Sizes with Storage Box，2 Years Warranty |
|---|---|
| Category | Electronics > Accessories & Supplies > Cord Management > Cable Sleeves |
| Brand | Nilight |
| Manufacturer | Nilight Heat Shrink 2:1 Electric Insulation Tube Kit 45mm Flame Retardant Wrap Cable Sleeve 5 |
| Model Number | 50005R |
| Color | 560Pcs 2:1 Heat Shrink Tubing |
| Material | Polyolefin |
| Item Weight | 3.2 ounces |
| Product Dimensions | 1"L x 1"W |
| Number of Pieces | 560 |
| UPC | 812227030216 |
| Unit Count | 1.0 Count |
| Global Trade Identification Number | 00812227030216 |
| Mfr Part Number | 50005R |
| Warranty Description | 2 Years Warranty |
| Built-In Media | Heat Shrink Tubing |
| Item Type Name | Nilight 560Pcs Heat Shrink 2:1 Electric Insulation Tube Kit 45mm Flame Retardant Wrap Cable Sleeve 560pcs 5 Colors 12 Sizes with Storage Box |
| Enclosure Material | Polyolefin |
| Item Dimensions L x W | 1"L x 1"W |
| Installation Type | Self-Adhesive |
| Style Name | Industrial |
| Style | Industrial |
Available variants
Color
- 560Pcs 2:1 Heat Shrink Tubing
- 130Pcs 3:1 Dual Wall Tubing
- 650Pcs 3:1 Heat Shrink Tubing
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