The SIB is a load-bearing light base designed in compliance with requirements of FAA Advisory Circular AC 150/5345-42 and IEC TS 61827 for direct mounting of 203mm (8˝) inset light fixtures.
| Compliances | ICAO |
| Fixture Type | 21378 21388 21390 2143 |
| Connection Types | 1 = One feed-thru (2 conductors) entry at location “A” in Base Side; 2 = Two feed-thru (4 conductors) entry at location “A” & “B” in Base Side; 3 = Bottom entry thru 3.94 DIA (100mm) in casting center; 4 = Bottom entry thru 4.57 DIA (116mm) in casting center, no internal |
| Options | GE = Ground, External |