Glossary of Terms — Page 7

What is IP Rating (Outdoor Lighting)?

IP (Ingress Protection) rating is a two-digit code, such as IP44 or IP65, indicating how well a light fitting resists solid objects and water. The first digit rates dust/particle resistance, the second rates moisture resistance. Outdoor UK lighting should be at least IP44, with IP65+ recommended for fittings directly exposed to rain.

What Is Museum/Anti-Glare Glass in Picture Frames?

Museum or anti-glare glass has a coating or texture designed to reduce reflections and glare compared with standard picture-frame glass, making the framed image easier to see clearly from an angle or under bright room lighting. It typically costs more than standard glass or acrylic glazing, so it's most commonly chosen for prominently displayed photos or artwork rather than everyday frames.

What is Polycarbonate (Greenhouses)?

Polycarbonate is a lightweight, virtually shatterproof plastic glazing material used as an alternative to glass in many UK greenhouses. Twin-wall or multi-wall polycarbonate panels trap air between layers, giving better insulation than single-pane glass, and its impact resistance makes it a popular choice for gardens with children or in hail-prone areas.

What Is the Difference Between 2-Stroke and 4-Stroke Garden Machinery?

2-stroke petrol engines run on a mixed fuel-and-oil blend, are lighter and can be used in any orientation, making them common in chainsaws and strimmers, but they are typically louder and produce more emissions per hour of use. 4-stroke engines use separate fuel and oil, run cleaner and quieter with better fuel efficiency, but are heavier — a trade-off that shapes which engine type dominates a given category of garden power tool.

What Is the Difference Between a Fan and Conventional Oven?

A fan (fan-assisted or convection) oven circulates hot air with an internal fan, cooking more evenly across all shelves and generally needing a lower temperature than a recipe's conventional setting. A conventional oven relies on static heat rising from top and bottom elements, which can create hotter and cooler zones between shelves.

What Is the Difference Between Wood Veneer and Solid Wood Furniture?

Solid wood furniture is built from timber all the way through, making it durable and refinishable but heavier and pricier. Veneer furniture uses a thin layer of real wood bonded over a core such as MDF or chipboard, giving the look of solid wood at a lower cost and with less warping, though it is more vulnerable to damage if the surface layer is chipped or sanded through.

What Is the VESA Mount Standard for Monitor Arms?

VESA is a standardised pattern of mounting holes on the back of most monitors, commonly 75x75mm or 100x100mm, that lets the screen attach to a compatible arm, stand or wall bracket. Checking a monitor's VESA pattern (and that it isn't VESA-incompatible, as some ultra-thin or curved screens are) before buying an arm avoids a mismatch that prevents fitting altogether.

What is Thread Count in Bed Sheets?

Thread count is the number of horizontal and vertical threads woven into one square inch of fabric, often used as a marker of softness and quality in cotton bed sheets. In practice, weave type and fibre quality matter as much as the raw number, and counts much above around 400 show diminishing real-world benefit — so it is best read alongside material, not as the sole measure of quality.

What is Tog Rating (Duvets & Bedding)?

Tog rating measures the thermal insulation (warmth) of a duvet or bedding item — the higher the number, the warmer it is. UK duvets typically range from 4.5 tog (summer) to 13.5+ tog (winter), with 10.5 tog being a popular all-season choice. It is not a measure of quality or fabric type, only insulating warmth.

What is Zigbee or Z-Wave for Smart Home Devices?

Zigbee and Z-Wave are low-power wireless protocols many smart plugs, sensors and locks use to talk to a hub instead of relying directly on home Wi-Fi. Devices on the same protocol form a mesh network that extends range and reduces strain on a router, but they need a compatible hub — check a device's protocol matches your existing smart home system before buying.

What Makes Cookware Induction-Hob Compatible?

Induction hobs heat cookware directly through a magnetic field, so pans need a magnetic base — usually stainless steel or cast iron — to work at all; aluminium, copper or glass pans without a magnetic layer won't heat. A simple check is holding a fridge magnet to the pan's underside: if it sticks firmly, the pan is induction-compatible.

Why Do Cot Mattresses Need to Be Firm and Breathable?

Safe-sleep guidance for babies recommends a cot mattress that is firm and flat rather than soft or sloped, since a firmer surface reduces suffocation risk and helps a baby maintain a safe sleeping position. Breathable covers and cores are also widely recommended, allowing air to circulate and reducing the chance of overheating during sleep.