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Small aluminum BA9S LED bulb, 25 by 9.5 mm, warm white 3000K light

allentian

allentian BA9S LED flashlight 3W 150-200lm 6-28V 3000K 270° 25x9.5mm

SKU CH-41MP-4Y62P

A compact BA9S LED lamp delivers 150-200 lumens of 3000 K warm white light across a 270-degree beam from a single 3535 SMD chip in a 25 x 9.5 mm aluminium body

  • TypeLED
  • Warm 3000K light suits relaxed evening use
  • 150-200 lumen output covers close-range tasks
  • 270° beam angle spreads light across a wide area
  • Single 3535 SMD LED keeps the unit compact at 25x9.5mm
  • Operates on 6-28V supply for flexible power options

Compact BA9S LED replacement

The allentian BA9S LED flashlight fits standard bayonet sockets and draws 1.4–1.8 W while emitting 150–200 lm of 3000 K warm white light. A single 3535 SMD chip mounted on an aluminium body produces a 270° beam for wide-area illumination. The 25 × 9.5 mm form factor suits tight fixtures in marine, automotive or instrument-panel applications.

Thermals and power in use

Measured draw stays between 1.4 W and 1.8 W across the 6–28 V input range, so heat output remains low during continuous operation. The aluminium housing acts as the sole heat path, keeping the emitter stable without active cooling. Silent solid-state operation adds no audible noise to the environment.

Upgrade scope and limits

This lamp replaces incandescent BA9S bulbs where lower power draw and longer service life are priorities. The warm white output matches traditional colour appearance while reducing electrical load on battery-backed circuits. Installations requiring higher lumen output, cooler colour temperatures or a narrower beam pattern will need a different module.

Highlights

  • Warm 3000K light suits relaxed evening use
  • 150-200 lumen output covers close-range tasks
  • 270° beam angle spreads light across a wide area
  • Single 3535 SMD LED keeps the unit compact at 25x9.5mm
  • Operates on 6-28V supply for flexible power options

Specifications

TypeLED

Questions about this item

How do I install the BA9S LED flashlight and which polarity step is often missed?

Insert the 25x9.5mm aluminum body into the BA9S socket; the single 3535 SMD LED requires correct polarity so test both orientations if it does not light at 6-28V.

What maintenance or replacement will the flashlight need over time?

The 3W LED module is sealed; no user-serviceable parts exist, so replacement means swapping the entire 150-200 lumen unit when output degrades.

What limit appears first during sustained use of the 3000K warm white light?

Measured power settles at 1.4-1.8W, so thermal limits of the 270° beam angle and aluminum housing determine maximum continuous run time.

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