Outdoor lights blowing

[Alex.]

Are the bulbs fitted lying on their side? I've heard this can reduce life if a bulb's not designed for it.

 

[brightspark]

Are the bulbs fitted lying on their side? I've heard this can reduce life if a bulb's not designed for it.

optimum position for filament bulb is down over or no more than 45 degrees tilt otherwise it overheats the highest part of the element and burn out quicker