Product Description

Miniature incandescent B-6 lamp for 28 volt aircraft indicator and reading light applications, using a BA15s single-contact bayonet base for compact installation in aviation lighting fixtures.

0 1. Overview

The 1308 lamp uses a B-6 envelope and a single-contact bayonet BA15s base, providing a secure mechanical and electrical connection in aircraft lighting sockets. The electrical rating is 28 volts at 0.56 amperes, corresponding to a power of 3 watts. The filament is a CC-8 configuration housed in a lead glass bulb and operates in a gas-filled atmosphere. Photometric performance data specifies a mean spherical candlepower light output with a nominal value of 16 MSCP, with defined minimum and maximum limits. Current draw values are detailed with minimum, nominal, and maximum levels, and the rated service life for the lamp is 2000 hours under specified test conditions. The design supports compact installation in aviation indicator and illumination positions where controlled light output and long life are required.

0 2. Key Features

  • Miniature B-6 glass envelope for compact aviation lighting installations
  • BA15s single-contact bayonet base for secure mounting and electrical connection
  • Rated at 28 volts and 0.56 amperes, providing 3 watts power consumption
  • CC-8 filament configuration inside a lead glass bulb
  • Gas-filled interior atmosphere for stable filament operation
  • Rated service life of 2000 hours under specified conditions
  • Defined mean spherical candlepower output with a nominal value of 16 MSCP
  • Intended for aircraft indicator and reading light service
0 3. Specifications

Part Number: 1308
Alternate Part Number: GE-1308
Lamp Type: Miniature incandescent
Envelope Size: B-6
Base Type: BA15s, single-contact bayonet
Test Voltage: 28 V
Electrical Rating: 28 V, 0.56 A, 3 W
Filament Shape: CC-8
Bulb Material: Lead glass
Atmosphere: Gas-filled
Current Draw (A): Min 0.504, Nom 0.506, Max 0.616
Light Output (MSCP): Min 12.8, Nom 16, Max 19.2
Rated Life: 2000 hours
Primary Application: Aircraft indicator and reading light
Pack Quantity: 10 per pack (for some package configurations)
Weight (per pack configuration): approximately 0.002 lb for lamp-only configuration

FAQs

01. What base type does the 1308 aircraft lamp use?

The 1308 aircraft lamp uses a BA15s single-contact bayonet base.

02. What are the electrical ratings of the 1308 lamp?

The 1308 lamp is rated for 28 volts, 0.56 amperes, and 3 watts power consumption.

03. What filament configuration is used in the 1308 lamp?

The 1308 lamp uses a CC-8 filament configuration.

04. What is the rated service life of the 1308 aircraft lamp?

The 1308 aircraft lamp has a rated service life of 2000 hours under specified test conditions.

05. What is the nominal light output rating for the 1308 lamp?

The 1308 lamp has a nominal mean spherical candlepower light output of 16 MSCP.

Didn’t find your answer?

Don't hestitate to contact us, we’ll reply as soon as possible.