Gigaware Micro Projector LED lamp Upgrade Replacement Repair.

I have upgraded the LED in my micro projector to 350 lumens.

Category:

Education

Tags:

• Gigaware Micro Projector LED
• Micro Projector LED
• Micro Projector lamp
• Micro Projector
• LED Upgrade
• Lamp replacemet
• led repair
• projector lamp repair

[supamonki69]

It would probably be brighter if the projector put out more power to the bulb. If this projector came with an led for a bulb then its probably set to put out say 1 watt to produce the 100 lm stock so if you putin a 200 or even 350 lm led it they would probably need 3-5 watts to put out their full potential. That would be my guess as to why its not getting much brighter since a 350lm bulb runnung on 1 watt will be putting out nowhere near 350 lm. So you would probably need a diff power source.

[SpeegleSphere]

@supamonki69

I have long forgotten everything about electricity. I thought that it would draw as many watts as it needed?

[drtarik33]

why didnt you use the CREE XM-L T6, it's a 1000Lm, way brighter.

just a thought...

[SpeegleSphere]

@drtarik33 Do you have a link where I could get one cheap? I actually signed up at cree.com to try to get a free sample but never got a response.

[Pano7123]

did u trade this in at radioshack because i think i have this one!

[SpeegleSphere]

@Pano7123 I still have mine. I did get it on clearance form the Kent, Ohio Radio Shack. It was the display model.

[creepyloner1979]

your power supply isn't powerful enough for the new led, the heat sink is too small for the new led and even if you replace both, the lcd isn't designed to have that much light pumped through it and will get fried without extra cooling.

[supamonki69]

@electronash Agreed. SpeegleSphere listen to him/her the know what their talking about. I'm no expert by far I just like sharing my knowledge gained from my projects :D

Also, definitely look up a led resistor calculators like ^ he said. they'er lifesavers. 1 more thing, idk how many watts a cree uses but lck-led has one 900 lm 10w for around $7.

[electronash]

cont 2...

Another problem is, with higher power LED's (needing more than 500mA or so), the series resistor can get very hot, and larger resistors are needed. A better way to drive these LED's is by using an LM317 regulator. (Google for "super simple high power led driver").

Yep, a Cree LED is probably a good idea. They are still some of the most efficient white LEDs around. I'm interested to see how bright this could get. Please let me know if need any tips on soldering to the power connector.

[electronash]

cont...

The current that the project supplies to the original LED is probably far less than what the new LEDs are rated at, so you probably won't get close to full brightness out of them.

The projector obviously limits the current to the original LED, and modifying it for brighter LEDs could prove tricky. I would recommend soldering the new LED directly to the DC power input socket (in series with the correct resistor). That's if you don't mind the LED being on all the time?

[electronash]

@supamonki69, you are mostly correct - an LED has a very low resistance, but has a maximum current that they will run at. Too much current will pop them, so you need to limit the current to them.

The most basic way is with a resistor. The value of the resistor depends on the source (power supply) voltage, the internal voltage drop of your specific LED, and the LED current that you want. (Google "led series resistor calc" and try the linear1 site.)

[supamonki69]

@SpeegleSphere It might be so. im not sure since idk much about this projector.i want to do the same projet :D my guess would be it would have a built in voltage regulator/resistor because leds have no resistance like incandecent so they take in all the electricity they can and if they are not regulated they will burn themselves out in seconds. so i would think the projector has one built in to protect the original led from the 120v ac and also convert it to dc which leds run on.