Squash er en racket- og ballsport som spilles av to (single) eller fire spillere (double squash) i en firvegget bane med en liten, hul gummikule. Spillerne veksler med å slå ballen med racketer på de spillbare overflatene på banens fire vegger. Målet med spillet er å slå ballen på en slik måte at motstanderen ikke er i stand til å spille en gyldig retur.… Read More
For a normal office worker, more than one-third of his time is spent in the office every day. Therefore, the office environment of a company is very important to every individual employee. For office decoration, the importance of lighting design is even more critical. The office is used for work, and the purpose of work is to create wealth.… Read More
In den letzten Jahren, mit dem Aufkommen und der Verbreitung von energiesparender Langzeitbeleuchtung, sind die Menschen zunehmend an einem niedrigen Energieverbrauch oder einer 12-V-Beleuchtung interessiert. 12 Volt werden häufig in Gleichspannung verwendet, ebenso 24 Volt. 48 Volt sind etwas seltener, werden aber in heutigen Gleichspannungsanwendungen immer noch häufig angewendet. Bei Wechselstromanwendungen (dem vom Energieversorgungsunternehmen gelieferten Strom) sind 120 Volt in den USA und Nordamerika der Standard, während 240 Volt für fast den Rest der Welt der Standard sind.… Read More
What kind of lamps should be used in common workplaces is also determined by the environment in which they are used. Take factory lighting as an example. If the humidity in the workshop is high, it is necessary to use lamps with good waterproof performance, while in dusty workshops, dust-proof lamps must be used. In these cases, the IP rating of the lamps used must be carefully selected.… Read More
Světla mohou rychle vyhořet z různých důvodů. První věc, kterou musíte udělat, pokud se zdá, že žárovka rychle vyhoří, je zkontrolovat svítidlo, ve kterém je. Svítidla se mohou časem opotřebovat a způsobit problémy s kabeláží, které způsobí předčasné selhání žárovek. Pokud se žárovky opakovaně rychle vypalují ve stejném svítidle, je to pravděpodobně toto svítidlo. Ujistěte se, že dodržujete specifikace výrobce svítidla pro příkon, napětí a tvar žárovky.… Read More
The dimmer is an electrical device, which provides uninterrupted dimming function according to user requirements. There are many kinds of electric lamps on the market, but no dimmer can adjust all types of electric lamps.
There are many types of electric lights:
The traditional incandescent lamp invented by Thomas Edison,
High-voltage halogen lamp, using 230V alternating current,
Low voltage halogen lamp, using 24V power supply, there are two ways to step down 230V to 24V: (a) use a simple transformer, or (b) use an electronic switching power supply,
Fluorescent lamp/fluorescent lamp, and energy-saving tube (CFL, Compact Fluorescent Lamp) is a special type of fluorescent lamp.… Read More
Alle lampen en armaturen worden geleverd met twee belangrijke specificaties: de gecorreleerde kleurtemperatuur (CCT) en de kleurweergave-index (CRI). Beide termen beschrijven de output van een lichtbron, en beide hebben het woord ‘kleur’ in hun naam, maar ze verwijzen eigenlijk naar heel verschillende dingen.
CCT is een getal, gemeten in graden Kelvin, dat helpt om te beschrijven hoe warm of hoe koel een lichtbron is.… Read More
Whether it is LED, fluorescent lamp or incandescent lamp, we all need to understand that power factor (PF) is one of its important parameters. Let us talk about what is the power factor.
Power factor represents the ability of lamp to output active power. Power is a measure of energy transfer rate. In DC circuit, it is the product of voltage V and current a.… Read More
Um acessório fechado é qualquer acessório ou aplicação em que a lâmpada seja protegida de uma forma que não permita o fluxo de ar ou ventilação adequada.
‘Luminária fechada’ é um termo geral para muitos dos usos de iluminação que vemos diariamente. Diferentes aparelhos de iluminação terão diferentes finalidades, sejam práticas, estéticas ou ambas.… Read More
Many people have a bad habit of not turning off the lights when they leave the room, meeting room or arena. Someone forgot to turn off the light before leaving the house. How much electricity can this waste? First we have to look at how much energy these lights actually consume.