In an independent lab test, 3 samples of Oshino and GE Q4631 were tested per MIL-DTL-6363H 3.6.5.3, MIL-STD-202 Method 214.  Test parameters:

• Vibration Level: D
• Vibration type:  Random(operational) Axes: Vertical
• Frequency: 50-2000 Hz
• Duration: 60 mins
• GRMS: 11.96

                   Oshino     GE
Sample 1    20             31
Sample 2    45             27
Sample 3    34             21
Average Operating Time to Failure - Minutes 

                  Oshino: 33  GE: 26

Oshino Q4631 Specifications 
Design Voltage [V]  13
Watts [W] 250
Filament C-6
Base  Screw Terminal
MOL (mm)  70
Lens Clear
Diameter (mm) 114
AIPBCP (cd) 80,000
Beam Spread (H x V) (deg) 13 x 12
Average Life Hours  500

 

Source: Intertek Report no. 102342015GRR-001, 20 November 2015.