Need Help with 93 Interior bulb replacements

[dbrannon79]

Guys, a quick and simple task but I need some help figuring out what bulbs I need.

for the 93 HVAC control and window switches, they use some sort of very tiny bulb that has a twist in type socket. you have to use a small flat blade screwdriver to get them out. I can't seem to find what the bulb number is. looking online it seems they could be a T3, T4, or a T5.

Here is the HVAC control I have and what the bulbs look like. (random pic from google)

 

[DieselCash]

Have you tried super bright led?

1993 Chevrolet C3500 LED Lights | Super Bright LEDs

Our Vehicle Bulb Finder is a quick and easy way to locate LED bulbs for your 1993 Chevrolet C3500. Whether you're searching for replacements for burned-out or dim incandescent bulbs or if you simply crave the long-lasting, energy-efficient, instant lighting...

www.superbrightleds.com

 

[dbrannon79]

they show a #74 bulb for the instrument cluster indicator bulbs. I recently replaced some that were out in the cluster. the ones in the AC control are tiny compared to the cluster bulbs This does get me closer though, a #74 fits a T5 base, the 194 fits a T10 base both are in the cluster ( not listed on their site, the illumination in the cluster uses a 194). I'm guessing it's likely a T3 base that's in the AC control.