Theatre & Model Railways.

Below as can be seen, there is a great variation in ‘white light’.

Lamps and bulbs will usually have their K value listed on the packaging.

The K Values of Light

Colour Temperature (K) Description
6,500-7000    Daylight, overcast sky at noon.
6500    Sunlight with blue/white sky
5,740    Average noon summer sun
5,600    Standard outdoor “white light”
5,500    Photographic white
5,070    Average noon winter sun 
5,000    Outdoor light for most of the day

 4,500   

Late afternoon sun

 3,500

Sun 1 hour after sunrise

 3,200-3,400

Photo flood – standard indoor “white light” studio lights

 3,000

1000 watt incandescent Tungsten halogen lamp

 2,870

100 watt incandescent light bulb

 2,800-2,500

Standard house lights

 2,000-2,500

Dawn or dusk

 2,000

Sunlight at sunrise or sunset

 1,900

Candle flame

Lastly, performance. 

The set, presentation and lighting cover the issues of a static layout – but as soon as we have movement, the onus is on the operation and performance to maintain and enhance the illusion that you have crafted. It is pointless building scenic perfection and then operating it like a toy – it ceases to be believable. In Theatre we call it ‘acting’. With model railways it means starting and stopping smoothly, gently and realistically. You never get any comments saying ‘ooh, isn’t that operated well…’ – people say instead – what a good layout – isn’t that lovely…. without realising that the good operation has even taken place. However, operate a beautifully made model like a toy, and you’ll notice a few people turn away….

Denton Brook Photos by Martin Coombs