i have glowshift(trans, egt, boost) in my truck. about a month after i put them in the back light went out on my trans temp gauge going down the road one night...needle still worked but no light. sent it in and a week later i had a working gauge back in my truck. no idea if they fixed my original gauge or gave me a new one. has been working fine since though. the egt gauge hasn't "saved" the color it was on when i shut the truck off like it is supposed to so i have to reset it to the color i want every time i start the truck. Pyro seems to be pretty accurate although i have never compared it to another gauge so....
Tomorrow on my way to school if remember i will grab you some pics of them with the green light. might be able to get some dark/early morning pics of them as well depending on when i leave.
If i had it to do again or someday get another truck and go with gauges, i will be getting Isspro though. Not gonna mess with these things again....at first i liked them but i don't like the look of them now, just look to "ricer" for my tastes. i have seen isspro's in person and they just look like way better quality than my glowshifts do....the way i look at it is, if you need gauges on your truck then you better buy something that is gonna be accurate and reliable, cuz if not then what is the point in even spending money on gauges?