Can I make this handheld toy projector brighter?

I bought this handheld viewmaster projector at a garage sale yesterday. The problem is the bulb isn't bright enough, it takes two D batteries. Anything I could change to make it brighter?

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Burf6 years ago
If you want quick and easy, go to a hardware or sporting goods store and get a good quality replacement incandescent flashlight bulb. (The bulbs that come with the ViewMaster toys are only slightly better than trash.)
For a superior fix, if you have the skills and tools, take frollard's advice.
buffysissy1 (author)  Burf6 years ago
would that be much brighter than what I already have?
frollard6 years ago
swap the light bulb for a higher power led -- should be able to increase light output and efficiency by several fold.

I'll leave the 'how to wire an led' to you -- since it is on the site four bajillion times.
buffysissy1 (author)  frollard6 years ago
Will the two D batteries be enough power for the LED?
More than enough. One would do the job easily, and make sure you put a resistor in the circuit to protect the LED.
You might need to source a boost converter if using with a high-power (> 1 watt) led...but d batteries are easily capable of the current requirements of most leds.
buffysissy1 (author)  frollard6 years ago
I guess I can go to a lighting supply for the LED's?
Lots of places, including ebay, Radioshack, or