RRT01 pill OEM or modified can’t take anything larger than 13mm. There’s just no more space. A single E21A won’t survive more than few seconds. The current is almost 3A. I wanted to make a dedicated 12mm quadtrix E17A for RRT01 but decided not to further make it due to several limiting factors. I am working on it, to make it more universal.

As for the moment, I’ll hold anything about RRT01 modification. I just can’t take the driver as is. In my opinion a new driver is a must for this RRT01. I found a good ready to use IC capable of buck, buck-boost, or boost ideal for this RRT01. We’ll see if I have the potential to make an LED driver.

If there are still enough interest for the aluminum pill we can start an interest list for a GB. So far the estimated price I can give for an aluminum pill (with or without MCPCB mounting holes) is $17/pc. It doesn’t come with the extra O-ring, I made an extra O-ring groove behind the rotary dial to make it completely waterproof.

[Clemence]