Which is more economial to run...?

Question

A timeclock (on-off switch) with a 5v eco-bulb -on at dusk off at dawn, or...a 5v eco-bulb left on continously. (For security)

Answer 1

Given that energy saver bulbs run on about 1/5th of the power that ordinary bulbs use, I would leave it on overnight.

On a security angle, burglars are less inclined to break into your house if there is a light to be seen, not that this is a surefire deterrent.

What would be the point in buying a timer if you are going to have the light on overnight anyway? The only merit in that would be if you were going away for, say, 2 weeks for vacation, then by all means, use a timer. There wouldn't be much point in burning electricity during daylight hours.

Answer 2

If the timeclock is clockwork, use it. If it is electric, it really wont make much difference. Eco bulbs are very economical & the difference in cost would only be pennies.