Check the listing for details. Micro Switch AML 42 Snap-In Rectangular Red Indicator Lights Panel Lamp 2.4 VDC. Condition: New. Listed at 9.99 USD. 3790SD2G.02 New Micro Switch (by Honeywell) AML Series 42 Compact Rectangular Red Indicator Lights, Snap-In Panel Mount Lamps, 2.4 VDC , Part Number AML 42SBB2, or AML-42SBB2, or AML42SBB2. Each bid quantity is for One (1) Indicator Light. You may bid / buy any number, up to the total quantity available above. These were purchased at an electronics liquidation earlier this year, and they were brand new in the original factory boxes. We packaged them in heavy Ziplok bags for resale. Rather pricey when bought from a supplier, at about $25+ each in small quantities. We never found a datasheet with dimensions, so we provided our own below. According to the calipers: Lamp lens size: .281" x .101" (7.14 MM x 2.58 MM) Bezel Dimensions: .796" x .301" (20.23 MM x 7.64 MM) [Panel cutout size would only be slightly smaller than this] Mounted Depth (excluding terminals): 1.446" / 36.74 MM Body width (excluding mounting retainer): .737" / 18.72 MM [Panel cutout size would need to be slightly larger than this] Body thickness (excluding mounting retainer): .242" / 6.15 MM [Panel cutout size would need to be slightly larger than this] Terninal dimensions: .110" x .020" x .300" (2.80 MM x .51 MM x 7.63 MM)