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Rocker, Intermediate, Fan Isolator and Cooker Switches Explained: What Does Each One Do?
Electrical switches can look very similar on the wall while doing very different jobs. Much of the confusion comes from product names combining terms such as rocker, 2-way, intermediate, 3-pole and 45A, even though each describes a different characteristic.
The useful starting point is therefore not the finish or even the shape of the switch. First establish what needs to be controlled, from how many positions, and whether the accessory needs to provide isolation for a fan or appliance. For
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22nd Sep 2026
How Many Downlights Do You Need? Plan the Layout Before You Install
Downlights are often arranged on a ceiling before anyone has asked the most important question: what actually needs to be lit?
A neat grid may look organised on a plan, but it can become much less practical once kitchen cabinets, a dining table, a television, a shower enclosure or other fixed features are in place. The number of downlights you need also depends on ceiling height, light output and beam spread rather than floor area alone.
At Arrow Electricals, we recommend planning the finished r
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10th Sep 2026
Door Locks and Latches Explained: Which Type Does Your Door Need?
Choosing a door handle is usually straightforward because you can see the style, shape and finish. Choosing the mechanism behind it can be less obvious.
Tubular latches, sashlocks, bathroom locks, night latches, deadbolts and deadlocks perform different jobs, yet some of the names are easily confused. That becomes especially important when replacing existing hardware, because choosing the wrong size or mechanism can mean altering a door that did not otherwise need changing.
This guide foc
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28th Aug 2026
How to Choose a Chandelier by Room, Ceiling Height and Drop
A chandelier can transform a room, but the design is only one part of the decision. Its width, total height, drop length and position will determine whether it feels properly balanced or looks too large, too small or too low for the space.
At Arrow Electricals, we recommend starting with the room rather than the style. A chandelier for living room seating needs different proportions from a chandelier for dining room use. A stairwell can often take a longer drop, while a bedroom or lower ceil
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15th Aug 2026
Designer Sockets and Switches: How to Choose the Right Finish
Designer sockets and switches are small details, but they can change how finished a room feels. They sit at eye level or hand height, are used every day and often sit close to other visible finishes such as door handles, cabinet hardware, lighting and radiators.
That makes the finish worth choosing carefully. A switch plate may look good on its own, but it still needs to sit comfortably with the wall colour, nearby hardware and the amount of contrast you want in the room.
For many homeown
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11th Jul 2026