Simple LED replacement for 6V 20W incandescent bulb?

fit24hrs · Post by **fit24hrs** » Fri Sep 28, 2012 8:20 pm

I noticed that the blub in the back of my Olympus BH2 (BHTU) is a two prong like many LED diodes. Is there a simple LED substitute for this? I would like to get a brighter, whiter light if possible. Thanks!

Hairyduck · Post by **Hairyduck** » Sat Sep 29, 2012 2:18 am

You need some proper electronics to dim the led, it's not something that you can swap out

enricosavazzi · Post by **enricosavazzi** » Sat Sep 29, 2012 6:47 am

Also, in most illuminators the position of the filament/LED chip is critical. It may be difficult to find a packaged LED bulb that places the light source exactly at the same distance from the lamp socket as the original bulb, and the illuminator may need to be modified in this respect if the difference is too large to be accommodated by the existing lamp centering controls.

fit24hrs · Post by **fit24hrs** » Sat Sep 29, 2012 8:05 am

Fair enough. Any thoughts on a direct drop in replacement for the 6v 20w bulb for a whiter light? The light from BH2 I have for personal use at home is just slightly more yellow than the BX's we use at work. Not a huge problem but the way the BX's illuminates my specimens are more pleasing to my eye. I guess I could use bluer filters...

Pau · Post by **Pau** » Sat Sep 29, 2012 8:41 am

fit24hrs wrote:Not a huge problem but the way the BX's illuminates my specimens are more pleasing to my eye. I guess I could use bluer filters...

If color temperature is your only/main issue, the blue filter as you say is the solution. In fact any microscope with tungsten or halogen lamp must be equipped with a light blue fliter and this is a standard accesory when bought new. Even I'm pretty sure that the BX has it in the light path.