I was all set to purchase the T490B-LED until I read some Forum posts that described replacing the LED bulb.
The instructions were terrifying. I saw pictures of multiple bulbs behind the door on the bottom of the microscope. I was expecting to see one 3 watt LED bulb. I think the picture showed a configuration of 7 bulbs.
Which bulb do I change? What kind of bulb should I buy? How do I change the bulb? I was so taken aback by my confrontation with the bulb set up, I started thinking that maybe microscopy is too complicated for me to pursue.
Does anyone know of a less complicated method for replacing an LED bulb? If so, please explain the method in nontechnical terms because I didn’t know what many of the terms used in the explanations even meant.
Thank you for any help you can offer.
D. Gibsman
Replacing LED bulb in T490B-LED
Re: Replacing LED bulb in T490B-LED
Typically an LED should last many, many years; having rated lifetimes of 50,000 hours or so.
Do you have one with a failed illuminator or are you just thinking about a possible future repair that might be needed?
I suspect the design is that the microscope would just be replaced when that lifetime is exceeded, but there's nothing to keep a resourceful person from repairing or replacing the illuminator.
Do you have one with a failed illuminator or are you just thinking about a possible future repair that might be needed?
I suspect the design is that the microscope would just be replaced when that lifetime is exceeded, but there's nothing to keep a resourceful person from repairing or replacing the illuminator.
Re: Replacing LED bulb in T490B-LED
Hi, I'm also looking for microscopes with a powerful and replaceable LED.
In that price range, the only one I found with a powerful (3w) LED that is specifically advertised as "replaceable" is the OMAX M837ZL, manufacturer page.
In that price range, the only one I found with a powerful (3w) LED that is specifically advertised as "replaceable" is the OMAX M837ZL, manufacturer page.