Mayfly?

Dr.EM

New Member

• May 11, 2006

• #1

Look at the life expectancy on this lamp:

**broken link removed**

Just over 2 days, is that really right?

 

The Mad Professor

New Member

• May 11, 2006

• #2

Quite probably , these small high power lamps are prone to failure.
Anybody found an equivelent with a better life expectancy ?

 

justDIY

Active Member

• May 11, 2006

• #3

I have seen projector bulbs rated for 300 (on the short end) to 2500 (on the long end) hours ... I think 50 is a typo

 

audioguru

Well-Known Member

Most Helpful Member

• May 11, 2006

• #4

I think 50 hours is the typical length of life for that 150W tiny bulb, think about the temperature of its filament. Projectors come with a spare bulb.
You won't make that much light with an LED any time soon! The light bulb probably makes an awful lot of heat too, about 135W of heat and only 15W of light.

 

Nigel Goodwin

Super Moderator

Most Helpful Member

• May 11, 2006

• #5

Try looking at the specs on a small torch bulb, they quote things like 4 hours!.