Basement and open carpark lighting

Basement and covered carparks in the Klang Valley stay lit through the day because they get little daylight. An open deck does not. The two should not share one savings sentence. The public condo band is still up to about 20% of lighting-related electricity, estimate only, not a per-deck guarantee.

Why does a basement stay bright in the daytime?

A covered deck has no useful day when the lights can simply be off. Residents arrive and leave, but the aisles between those trips are still underground. A walk at noon that finds every row lit is normal for that building. It is not, by itself, a fault report.

The waste, where there is waste, is full output in aisles that are empty, including overnight. That pattern is overnight carpark lighting wastage. Daylight will not switch those fittings for you.

How is an open deck different?

An open carpark has daylight. The hours that matter are the ones after that daylight has gone, and the rows that are actually empty. Copying a basement story onto an open deck overstates the day load. Copying an open-deck story into a basement understates it.

Neither deck inherits a private percentage. Building type sets the public band: condo about 20%, office about 15%, mall about 5%, on the lighting-related slice only. See condo carpark electricity for JMB / MC.

What if the building has both?

Many Klang Valley condos have a basement plus an open or podium deck. They are one committee and two lighting patterns. This page will not average them into a single cut. A site survey looks at each deck before any number is a proposal.

Dimming still means a usable baseline on both. A basement does not get switched off because it is underground, and an open deck does not get switched off because the sky is dark. That limit is does dimming leave the carpark dark.

What should you write down on a ten-minute walk?

Separate the notes by deck. For the basement, say whether fittings are at full output in rows with no moving car, in the day and after midnight if you can see both. For the open deck, say whether those fittings are even on in daylight, and what they do after dark. A single comment “carpark is bright” erases the split this page is about.

Also note ramps and lift lobbies separately from parking rows. A ramp that stays brighter can be a choice about moving traffic. It is not evidence that every bay should match it all night. Do not turn that note into a lux reading. We do not publish a lux pass mark, and a phone photo is not one.

What goes wrong when one percentage covers both?

The basement, which runs all day, gets understated. The open deck, which may already be off in sunlight, gets a day-time saving it cannot have. The committee then argues about a number that was never attached to either deck. Keep the public band on the building type — condo, office, or mall — and keep the deck notes as notes. The band does not become 20% of the basement plus 20% of the open deck.

What should the committee say in a note?

Say which decks are covered and which are open. Say whether the lights are on a timer, grouped, or already on sensors. Do not write one percentage for “the carpark” until someone has walked both. We reply from info@carparklight.com. There is no shopfront street address on this site.