Home / Knowledge library / Spec explained
Spec explained
How UGR affects computer and TV screens
“Watching TV or working on your laptop and seeing the lamp reflected in the screen?”
The problem
Reflected Glare from surface-mounted lights on glossy screens reduces concentration and distorts the picture.
Technical explanation
Correct design positions the lighting so it doesn't fall directly on screens, and using (UGR<19) lights with deep reflectors prevents this reflection completely.
The result
Enjoyable, comfortable viewing of your favourite programmes, and better focus in home offices.
Related to
Similar entries
Common mistakeFalse savings on the lighting budget
“Want to save on your lighting budget? Don't buy cheap, use the “hybrid system”!”
- The problem
- Buying cheap products for the whole villa to save money, which leads to burnt-out fittings and double the maintenance cost.
- Technical explanation
- The hybrid system means combining very high-spec fittings (for the majlis, living rooms and facade) with mid-range fittings (for service rooms and storerooms).
- The result
- Cutting costs by up to 40% while keeping 100% of the luxury in the areas guests see.
Common mistakeAiming light at glass and mirrors
“Got a spotlight hitting the windows at night? You're blinding your guests!”
- The problem
- Aiming lights at reflective surfaces such as glass creates distracting glare that blocks the view outside.
- Technical explanation
- Light should be aimed at walkways and opaque walls. Avoid aiming lights at windows at night entirely, so you can enjoy the view of the garden.
- The result
- A comfortable evening sitting and a clear view of the villa's garden without distraction.
Common mistakeLighting windows and mirrors
“Lighting your mirrors and windows to make your home look luxurious? You're blinding yourself!”
- The problem
- Aiming lights directly at glass and mirrors bounces the light back as very uncomfortable glare.
- Technical explanation
- Glass doesn't reflect light softly like painted walls do, so lighting should be from the side or hidden behind the mirror (Backlit) to avoid discomfort.
- The result
- Hotel-style bathrooms and corridors, without visual discomfort.
Common mistakeLighting glass windows
“Have lights aimed at your living room windows? You've just blinded your guests!”
- The problem
- Aiming light at glass makes it act like a mirror, reflecting harsh light into the eyes and blocking the view of the garden.
- Technical explanation
- Light should be directed at walkways and solid walls (Wall Washer), completely avoiding reflective surfaces.
- The result
- A comfortable living room at night with a clear view of the garden.
ComparisonConventional approach vs. the “hybrid approach”
“Want to save 40% of your lighting budget without losing the luxury? The secret is hybrid!”
- The problem
- Buying expensive products for the whole villa, or cheap ones for the whole villa
- Technical explanation
- The hybrid approach means using very high-spec fixtures (for the Majlis, living rooms and façade) and mid-quality fixtures (for service rooms and storerooms)
- The result
- Smart budget savings while still impressing guests in the reception areas
Common mistakeThe grid-layout trap
“A spotlight every 2 metres? That old rule will cost you on your bill and leave your villa ceiling looking cluttered!”
- The problem
- Filling the ceiling with a huge number of evenly spaced spots (a grid layout), which creates visual noise and strains the eyes.
- Technical explanation
- Smart lighting design places light according to the furniture, artwork and walls, not by random even spacing.
- The result
- Lower installation, electricity and maintenance costs, with a cleaner, more attractive ceiling. (Invite viewers to send their floor plan on WhatsApp for a smart lighting layout.)
Common mistakeThe one-metre, two-metre rule (grid layout)
“A spotlight every 2 metres? That rule will make your villa look like a supermarket!”
- The problem
- Spacing lights evenly (in a grid) wastes electricity and leaves the ceiling full of holes that are tiring to look at.
- Technical explanation
- Real lighting design is based on “task distribution”: lighting only the furniture, corridors and artwork, and leaving restful areas (shadows) to create contrast.
- The result
- A cleaner ceiling with 40% fewer openings, savings on the electricity bill, and twice the sense of luxury.
Common mistakeThe hidden 220V hazard
“Planning cove lighting somewhere within reach of your hand? Never buy 220V!”
- The problem
- Using cheap 220V (High voltage) strip in TV shelving or bedrooms where it can be touched.
- Technical explanation
- 220V strips are meant for high ceilings, with runs of up to 50 m, but they are not shock-safe. For shelving, use 24V, which is completely safe.
- The result
- Complete protection for children and your family against any electrical short circuit.
Guide values; the final decision rests with a qualified engineer under the applicable code.