Technical specifications:

Type: Lamp with G4 base
Brand: Osram 64250 HLX
Rated power: 20 W
Rated voltage: 6 V
Color temperature: 3,350 K
Rated luminous flux: 460 Lm
Diameter: 9 mm
Instant light (HLX)
Luminous efficiency: Up to 10% more than standard lamps

Compatibility:
Valid for:

Welch Allyn Series 380 Anoscopes
Welch Allyn Series 385 Anoscopes
Welch Allyn 38800 Anoscopes
Welch Allyn Series 395 Anoscopes
Welch Allyn 20100
Welch Allyn 21600
Welch Allyn Series 235
Welch Allyn 77900 Penlight
Welch Allyn 26000
Welch Allyn 2603
Welch Allyn 40510
Welch Allyn 41000
Welch Allyn 42700

Applications:
Use in otoscopes and illuminators