150 131 Vacuum Gauge

It is clearly depicted on VDO's site, and is the GUAGE, not the kit required to install it.It does not come as a kit.. So if you need to know what size hole to make, or what size it is, VDO.com and review the publicly available install directions. 2 1/4" cockpit series is what this is from.It was designed to use incandescent.. it does not have LED. If you want LED, then lookup the 168 wedge bulb, and buy your led specific bulb.I have 8 of these Cockput series guages going into my camper, and bought a very nice blue led multipack ($10 for 10 bulbs i think?) It is a very nice.Mini Short 12V T10 Wedge Lamp for Car Dash Instrument Panel They fit, and they look great, not too brght either. I've not tested dimmer.. but when tested in the guage using a battery pack, it was very nice.I'm sure you can get whatever color bulbs you like if the stock incandescent bulb that comes with it is not to your liking.

Really like the VDO gauges, looks & works great but was a little disappointed in the instrument lighting. Would have preferred LED lighting instead of a standard bulb, LED is more up to date and keeps the heat down within the gauge.

No fittings or line to connect this to a vacuum source. Luckily I had a previous gauge installed so I could reuse my fittings. This is for a gauge only, no line, no fittings included. Gauge works great though.