We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Clear glass automotive bulb with metal BA15s base

OSRAM

OSRAM 5637 R10W 24V 10W BA15s Standard Bulb

SKU CH-84FV-K3DMF

A 24 V, 10 W BA15s bulb delivering 125 lumens for truck and bus signal lamps

  • Power rating10
  • Light output125
  • Product typeAutomotive Bulbs
  • OEM quality ensures reliable performance for trucks and buses
  • 125 lumens delivers clear visibility in automotive applications
  • 10 watt power consumption balances brightness with efficiency
  • 24 volt design matches commercial vehicle electrical systems
  • BA15s base fits standard sockets for easy replacement

Application and fit

This OSRAM 5637 lamp is a 24V 10W BA15s standard bulb engineered for trucks and buses. It serves as an original spare part for commercial-vehicle lighting circuits. The metal base provides reliable OEM quality across the stated product range. Buyers needing a 12V bulb or a different base type cannot use this item.

Output and limits

Rated at 10W, the bulb produces 125 lumens of light output. It is designed for standard signalling functions on 24V electrical systems where this wattage and lumen level are specified. The lamp does not suit applications that demand higher brightness or a different voltage.

Thermal and electrical behaviour

At its rated 10W draw on a 24V supply the bulb operates within normal automotive thermal limits for signalling use. The metal base aids heat dissipation and secure contact in the socket. No forced cooling or special wiring is required for standard installation.

How it compares

Measured against everything we stock in General-Purpose & Specialty Bulbs, at today’s prices. Recalculated every night.

Price $3.99
Cheaper than about 94% of the 1,791 comparable items (median $17.99).

Specifications

Product
Brand nameOSRAM
Product typeAutomotive Bulbs
Display
Light output125
Power
Power rating10

Questions about this item

Will this 24 V 10 W BA15s bulb work in the same socket as my existing 24 V 5 W BA15s lamps?

Yes, both share the BA15s base and 24 V rating; the 10 W version simply draws more current and produces 125 lumens instead of the lower output.

How can I confirm the 5637 bulb is operating correctly once installed?

Switch on the circuit and verify a steady white glow at the rated 125 lumen output without flickering or dimming.

Does the single 5637 lamp come with any wiring adapters or mounting hardware?

The package contains only the BA15s bulb itself; no adapters, connectors or mounting brackets are included.

More in General-Purpose & Specialty Bulbs

Similar items