Guide · Klang Valley
Does dimming leave the carpark dark?
Occupancy-aware dimming keeps a usable baseline and raises the light when people or cars are there. It is not an off switch for the deck. Not a quotation.
Updated
No. Occupancy-aware dimming is meant to keep a usable baseline and raise the light when people or cars are there. It is not an off switch for a Klang Valley carpark. This page does not publish a lux number or an inspection pass mark.
Do empty bays switch off?
The fitting stays on at a lower output. When someone uses the bay or the aisle, output is meant to rise. That is different from a circuit that is shut for the night, and different from a failed lamp that stays down until maintenance replaces it.
A dimmed aisle is still using energy. The public bands already assume a lighting load remains. They are not a zero-light night. Condo up to about 20% of lighting-related electricity, office about 15%, mall about 5%. Estimate only, not a quotation. How the fittings are described, including the baseline, is on the solution page.
Why do some decks already have dark pockets?
Grouping and timers are the usual cause. A zone drawn for wiring can leave one pocket short and the next aisle at full output until morning. People then describe the whole carpark as “too dark” and “too bright” in the same meeting. Both can be true, and neither one means the fix is to run every fitting at full output all night.
Occupancy-aware dimming is meant to avoid that split, not to copy it. How timers and lamp swaps differ is in sensors, timers, or an LED retrofit.
Does a basement get a darker baseline?
No. Covered decks and basements are where full output overnight is most common, because there is little daylight. They still keep a usable baseline. An open deck is a different pattern, not a licence to switch the basement off. See basement decks and open carparks.
We do not claim a dimmed carpark is unsupervised, and we do not claim it passes a local inspection. A survey looks at the deck you have. A number on a brochure does not.
What do residents usually mean by “too dark”?
They usually mean a pocket they already dislike: a column line, a corner bay, or a row on a grouped circuit that was set low. That complaint can be true before any occupancy control is installed. Treating every dimmed fitting as the same complaint hides the difference between a fault, a timer group, and a baseline that is supposed to rise when the aisle is used.
Ask where and when. A row that is low at 7pm when cars are arriving is not the same event as a row that is low at 2am with no movement. The first is a reason to look at baseline and grouping. The second may be the system doing what it was asked to do. Write the hour down. Do not accept “the carpark is dark” as a complete report.
What we will not certify from this page
We will not say a dimmed deck meets a house rule, a security brief, or an authority inspection. Those documents name their own levels. This site does not substitute a lux figure for them. If a committee has a written level it must hold, bring that paper to the survey. Do not expect the public energy band to answer it. Energy and a minimum level are two constraints. One percentage cannot satisfy both by itself.
What should a committee ask on site?
- What stays on when an aisle has been empty for a while.
- What changes when a car or a person enters that aisle.
- Which pockets are dark today because of grouping, before any new control is discussed.
Why the lights are on in the first place is overnight carpark lighting wastage. We reply from info@carparklight.com. A preferred visit date is not a booked slot. There is no shopfront street address on this site.
What this page does not say
- This page does not publish a lux number or a pass mark for an inspection.
- Dimming empty aisles is not a claim that the carpark is unsupervised.
- A usable baseline still uses energy. It is not a zero-lighting night.
Questions committees ask
- Do the lights turn off when a bay is empty?
- The intent is a usable baseline, not a dark deck. Output drops when people or cars are not there, and it lifts when they are. It is not the same as switching the aisle off.
- Why do some carparks already have dark pockets?
- Grouping and timers often leave one zone too dark and another at full output all night. Occupancy-aware dimming is meant to avoid that split, not to copy it.
- Is a dimmed aisle the same as a failed lamp?
- No. A failed lamp stays down until someone replaces it. A dimmed fitting is still on at a lower output and is meant to rise when the bay is in use.