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#313, 1818, 1819, 1820, 1829, 1864 LED Replacement | BA9S | 28V

A premium quality LED drop-in replacement for 28-Volt AC/DC, T3-1/4 "tubular shape" single-contact miniature bayonet base (Ba9s) miniature light bulbs. Dimensions are identical to filament version for a no-questions drop-in replacement. The lamp features a high quality surface-mount led affixed to an aluminum heat sinking chassis for superior heat dissipation. An opaque polycarbonate lens cover provides an unbreakable shell while distributing the light to effectively provide balanced omni-directional light projection. Extremely efficient led technology generates no radiant heat, provides more light output than the filament versions, and is designed to last thousands of trouble-free hours. The ideal solution for upgrading indicator lights, control panel lights, and annunciators where safe, efficient and reliable lighting performance is critical.

*By using only premium components, our PURE WHITE color is snow white, unlike virtually all other leds in the market which utilize inferior components and cast a blue/purple hue 

*Save 10% by ordering multi-packs


Common filament bulbs this led will replace include numbers: 313, 1818, 1819, 1820, 1820BTS, 1829, 1843, 1864, 1873, 757, 1437.


Note regarding voltage selection:

  • Order 28-volt version if application incorporates a dimmer control (other than PWM dimmer). The brightness of this bulb changes as a function of the voltage (lower voltage=lower brightness; increase voltage = higher brightness). *Supply voltage over 28-volts may affect lifespan of led.
  • Order 10-30 volt version (25% brighter) if dimming NOT required; OR for dimmable applications, a digital PWM dimmer control is required. 10-30 volt models maintains constant brightness at any voltage between 10 and 30 volts, which eliminates fluctuations in light output with voltage changes. Also this model internally regulates voltage/current, which eliminates issues with early failures due to poorly regulated voltage supplys. This model also allows installers the ability to keep a single model for use in either 12-volt or 28-volt installations, thus reducing inventory stores. 


*For a 28-Volt miniature bayonet LED replacement where more light output is desired (100 lumens), our #1495 LED REPLACEMENT may be an optimum replacement. 



Certifications: RoHS, CE

Base Type: BA9s (Miniature Bayonet)

Bulb Shape: T3-1/4 (Tubular shape)

Voltage: 28V AC/DC; (10-30V)

Wattage: 28V: 0.56watts; (10-30V: 0.84watts)

Polarity: Compatible with base ground and positive ground applications

Low Voltage Cutout: 16.5V

Dimmable: YES (voltage-dependent intensity decrement; PWM drivers)

*Reduced current draw of LED may narrow the effective dimming range when used with rheostat-type dimmer controls)

Beam Angle: 360 degrees


#313, 1818, 1819, 1820, 1829, 1864 LED Replacement | BA9S | 28V

PriceFrom $5.39
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