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Extension lead indicator lights too bright

Updated: 23 October 2026

You have either been kept awake by a small neon, or you cannot see which socket is on in the kitchen. Both problems are the same lamp. Extension lead indicator lights too bright is the bedroom version. A kitchen often wants that glow. Peter F., editor for DIY & tools, sorted the amazon.co.uk review notes in the [extension lead individually switched comparison](/hub/sockets-and-extension-leads/extension-lead-individually-switched) on 20 October 2026. This is not a lab measurement of brightness. A qualifying purchase can earn a commission at no extra cost to you. A lamp shows that a socket is on. It can keep you awake.

You have either been kept awake by a small neon, or you cannot see which socket is on in the kitchen. Both problems are the same lamp. Extension lead indicator lights too bright is the bedroom version.

Our top picks

Masterplug Masterplug SWSRG4210N

Best overall

Masterplug Masterplug SWSRG4210N
9.4/10about £9.50
View offer
Pro Elec Pro Elec PL15330

Best value

Pro Elec Pro Elec PL15330
8.8/10about £9.99
View offer
Mscien Mscien UKS-6K5PUC

Alternative

Mscien Mscien UKS-6K5PUC
7.8/10about £18.68
View offer
On this page
  1. 1.Two jobs for the same lamp
  2. 2.What these reviews say about brightness
  3. 3.Switches you cannot read
  4. 4.What a lamp is not

Two jobs for the same lamp

In a kitchen or a cupboard you want to see the rocker without guessing. A neon or LED on the switch does that job. You can leave the router plugged in, see that it is still on, and turn a lamp off at the bar. IKEA's KOPPLA six-way, which is not one of these ASINs, splits the same way: one review says the light rules it out of a bedroom, and another likes the neons because you can see which socket is on. The lamp does not tell you the load. A bright neon on a switched-on empty socket only says the contacts are closed. It is not spare capacity in the fuse, and it is not an RCD. Who should skip a bright bar is on the best individually switched extension lead page.

What these reviews say about brightness

The Masterplug SWSRG4210N is the clearest bedroom warning in this set. UK reviews cite a lamp on each switch plus two coloured lights at the end that stay on, and they say that glow is too bright for a bedroom. The end pair does not follow the rockers. Switching a socket off does not put the room back into the dark if those two remain lit. The six-socket SWSRG6210N draws the same complaint. Reviewers call the LEDs bright enough to light the room and compare the bar to a Christmas tree. One six-way review still calls the switches crisp. The handling can be fine and the bedroom can still be wrong.
Masterplug Masterplug SWSRG4210N

Testsieger

Masterplug Masterplug SWSRG4210N
9.4/10about £9.50
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Switches you cannot read

On the Pro Elec PELB1918, one review says the switches are all white, so on and off are hard to tell, and the buyer painted them. That is what one person did. Do not paint a switch. This page has not tested any coating. The listing's own indicator is an LED for surge protection and power, not a mark on the rocker. A surge lamp is a different light from a switch lamp. The neon in the rocker says that outlet is connected. Masterplug's family sheet treats a surge neon as the sign to replace the lead if the circuit has failed. Do not tape over it so you can sleep. If the room must stay dark, use a lead whose reviews already call the lamps subtle. The joule figures are on the surge protection page.

What a lamp is not

A neon is not an RCD. It will not trip because a fault is leaking to earth, and it will not save a lead you have overloaded. It is not proof of surge protection either. Pro Elec PL13085 has a neon on each switch and does not claim surge in the bullets. The Masterplug SWC4210N page talks about power and surge LEDs, and UK reviews say those LEDs are not fitted. A missing lamp on that model is part of the evidence that the surge parts are absent, not a lucky dark bedroom. Do not buy it because you hope the lights were left off.

Common questions

Why are some switched leads too bright at night?
The indicator is built to be seen. In a dark bedroom that visibility is the complaint. Masterplug SWSRG reviews describe end lamps that stay on, and a six-way bar that lights the room. Pro Elec PL15330 reviews describe a green neon that is very bright for sleep. The lamp has not failed. It is in the wrong room. A kitchen, where you need to see the switch, is where the same glow is useful.
Which leads in this set have a lamp on each switch?
The bullets say so for Pro Elec PL13085 and PELB1761, for both Masterplug SWSRG bars, and for the Mscien five-way, which has a lamp on each of five sockets. The Mscien USB bar has lights that two reviews call subtle. Pro Elec PL15330 is the odd one: a review says the switches do not light individually, while other reviews describe a green neon for the bar. Dewenwils claims indicator lights without promising one inside each rocker.
Which reviews say the lamps are dim enough for a bedroom?
Only the Mscien UKS-6K5PUC file, where two UK reviews say the blue lamps are subtle and did not keep the buyer awake. Do not apply that sentence to the Masterplug SWSRG leads or to the Mscien five-way, whose reviews say the opposite. The three-gang Pro Elec sample does not contain a bedroom-brightness cluster. That silence is not a measurement of a dim neon.
What if the switches are white and unmarked?
On the Pro Elec PELB1918, one review says the switches are all white, so on and off are hard to tell, and the buyer painted them. Do not copy the paint. You can still use the separate LED the listing describes for surge and power, if you can see it, or you can choose a lead whose neon sits in the rocker. An unmarked switch fails in a kitchen as well as beside a bed.
Is a bright lamp the same thing as surge protection?
No. A bright neon often only means the socket is switched on. Surge protection is a claim on the listing, sometimes with a joule figure and a separate surge lamp. Pro Elec PL13085 has neons and no surge claim. A surge lamp that goes out while the sockets stay live is a failed protector, which is a different page. Do not cover that lamp to darken the room.

Related pages

Individually switched extension lead buying guide

Extension lead individually switched

Best individually switched extension lead for 2026

How to use an individually switched extension lead

Individually switched extension lead with surge protection

Sources

Sources taken from the research digest. Listings were scored on 22 October 2026. This page did not run a lab test.

  1. Plugs and Sockets etc. (Safety) Regulations 1994 (retrieved 22.10.2026)
  2. Electrical Equipment (Safety) Regulations 2016, regulation 35 (retrieved 22.10.2026)
  3. Electrical Safety First — extension leads (retrieved 22.10.2026)
  4. Electrical Safety First — overloading sockets (retrieved 22.10.2026)
  5. London Fire Brigade — cables, fuses and leads (retrieved 22.10.2026)
  6. Scottish Fire and Rescue Service — electrical safety (retrieved 22.10.2026)
  7. BEAMA — extension lead safety checklist (retrieved 22.10.2026)