Empty cable reel vs extension reel: empty or loaded
Updated: 23 October 2026
The empty drum is about £18 and a loaded reel is nearer £40, so empty looks like the bargain. An empty cable reel vs extension reel is not that price comparison. One is a socket drum you still have to cable. The other arrives with flex, a plug, and two watt figures. The listings are in our [empty cable reel comparison](/hub/sockets-and-extension-leads/cable-reel-empty). A qualifying purchase can earn a commission at no extra cost to you. It is not a lab test.
The empty drum is about £18 and a loaded reel is nearer £40, so empty looks like the bargain. An empty cable reel vs extension reel is not that price comparison. One is a socket drum you still have to cable.
The empty drum is about £18 and a loaded reel is nearer £40, so empty looks like the bargain. An empty cable reel vs extension reel is not that price comparison. One is a socket drum you still have to cable. The other arrives with flex, a plug, and two watt figures. The listings are in our empty cable reel comparison. A qualifying purchase can earn a commission at no extra cost to you. It is not a lab test.
Our top picks
| Badge | Product | Type | Unwound mark | Cable in the box | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Amazon Basics Amazon Basics LRK02 | Storage reel, not a versus side | No supply rating | No | 9.2 | about £10.52 | View offer |
 Pro Elec Pro Elec PEL00901 | Socket drum | Watts not on amazon bullets | Spec and reviews disagree | 9.2 | about £18.19 | View offer | |
| Alternative |  EnergyPro EnergyPro DL616B-BS | Socket drum | 2,300 W, 10 A | You supply H05VV-F | 8.8 | about £18.88 | View offer |
On this page
What you are actually comparing
A socket drum has outlets and a place to terminate flex. In this set that is the Pro Elec PEL00901 at about £18.19 and the EnergyPro DL616B-BS at about £18.88. Treat both as empty: a Pro Elec line says one cable is included, while the reviews describe an empty box. A loaded reel arrives with cable, a BS 1363 plug, and wound watts split from unwound watts. Other UK shops, not ASINs here, show that shape at about £40 for around 20 m, marked 960 W wound and 3,120 W unwound, or about £43 for a 50 m reel with the same split.
A tidy reel is neither side of the versus. The empty cable reel buying guide sends that wheel to storage. The EnergyPro claims BS EN 61242. The Pro Elec amazon bullets do not.
When the empty drum is the better buy
Buy empty when the flex is already sound and the drum shows the limits you will keep. Pro Elec reviewers, 4.6 from 399 at about £18.19, fit cable from a broken reel. You are paying for the sockets, not for copper.
The EnergyPro names H05VV-F 3G1.25 mm² up to 20 m, or 3G1.5 mm² up to 30 m. Unwound, 2,300 W. Coiled, 1,150 W or 1,000 W. That is the better empty buy when the donor flex matches and 10 A is enough. It is weaker on evidence: 4.4 from five reviews, and one handle came off. Empty stops being the better buy when you cannot see a cut-out. The Pro Elec bullets do not print watts. A B&Q page states 13 A for the same model. Four sockets do not make it 13 A. Stop if earth is unclear, as the how to wire an empty cable reel page says. Empty wins on money only when the cable is already yours.
When the loaded reel is the better buy
Buy the loaded reel when you want to plug in today, when you have no sound flex, or when you want wound and unwound figures printed. A Status-style 50 m reel around £43, at 960 W wound and 3,120 W unwound, is two jobs: about 4 A coiled and 13 A run out. Electrical Safety First puts a typical wound rating at about 3 A or 4 A. The plug fuse does not protect cable still on the drum. You still unroll it. Do not upgrade the EnergyPro’s 2,300 W to 3,120 W because another reel says so. Skip both if the flex is scorched or taped, if you would join two lengths, or if the outdoor socket has no RCD.
The condition
Choose the empty drum if you can wire a plug, the flex is sound, and the drum shows a limit you will unwind to meet. That is the EnergyPro when 10 A and the stated lengths match, or the Pro Elec when you will read the label because the amazon bullets omit watts. Choose the loaded reel if any of those fail. A tidy reel only packs a finished lead, on the best empty cable reel page.
Common questions
Is empty always cheaper once I buy 30 m of flex?
Not on the figures in this set. The socket drums are about £18 to £19 before flex and a plug. A loaded reel in other UK shops, around 20 m or 50 m, can sit near £40 to £43 with the cable included. This capture does not price the flex, so do not treat £18 as the finished cost.
When is reusing the old cable a good idea?
When the sheath is intact, the length matches what the drum allows, and you can remake the plug without guessing earth. Pro Elec reviewers bought the drum for that job. If the old lead is taped, scorched, or pulled out of its grip, it is not a donor. Buy a loaded reel instead.
Why do loaded reels show two watt figures?
Because a coiled cable heats in a way a run-out cable does not. A common marked pair on 13 A reels is about 960 W wound and 3,120 W unwound, which is about 4 A and 13 A. Electrical Safety First describes wound ratings of about 3 A or 4 A. You use the lower figure while any cable remains on the drum.
What if the empty drum is 10 A and the tool is a 2 kW washer?
A single 2 kW load is inside the EnergyPro’s 2,300 W unwound mark and outside a comfortable margin if anything else is plugged in, or if the cable stays coiled. Coiled, that drum states 1,000 W or 1,150 W. Unwind it, and do not add a second heat load. If you need a true 13 A unwind rating, buy a reel that prints it.
Who should skip both and call an electrician?
Anyone who cannot identify live, neutral, and earth, anyone whose flex is damaged, and anyone about to run an outdoor lead from a socket with no RCD. A new drum does not make a taped joint safe. A loaded reel does not fix the socket it is plugged into.
Related pages
Sources
Sources taken from the research digest. Listings were scored on 19 October 2026. This page did not run a lab test.
- Electrical Safety First — Cable reels (retrieved 19.10.2026)
- Electrical Safety First — Overloading sockets (retrieved 19.10.2026)
- HSE — INDG247 Unwinding drums (retrieved 19.10.2026)
- BSI — BS EN 61242 (retrieved 19.10.2026)
- UK national condition on reeled cable (retrieved 19.10.2026)
- Plugs and Sockets etc. (Safety) Regulations 1994 (retrieved 19.10.2026)
- BEAMA — Extension lead safety checklist (retrieved 19.10.2026)
- Camping and Caravanning Club — Electricity (retrieved 19.10.2026)