OLM Alpha HD H11 5500k

2015-2020 WRX & *STI / 14-18 Forester / 13-17 *Crosstrek / 13-16 FR-S / 86 / BRZ

Ships for free in the 48 states


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Here, you are looking at the OLM AIpha HD Series Light Bulbs. These are a compact all-in-one design that utilizes efficient LEDs to maximize light output while keeping the overall bulb affordable.

Suitable replacement for H16/H11 low beam and fog light bulbs. Crosstrek owners WITH steering response fog lights (SRF) can use this bulb.

Reset Configuration


The 19w bulb from the factory produces an orange light and only has enough intensity to light up the road a few feet ahead.

The typical LED bulb that you see looks great in the reflector when viewing the vehicle, but they don't really put out much usable light. Even less than the 19w stock bulb.

OLM has a bulb which has a higher output and whiter light. Most people will not use fog lights for the sole purpose of navigating through fog. Many areas are not even prone to fog. A large percentage of users can benefit from a driving light vs a fog light. Placing more light on the ground during normal driving can increase a driver's situation awareness as well as those around them.

The base of the light is adjustable so you change the focal length resulting in the best output. The heat sink is also reversible in case your application demands the bulb to conform to a different profile for proper fitting.

NOTE: If your WRX / STI was made for the Australian market, we cannot recommend this bulb. The design of the fog light housing for this market is different. The housing contains an additional P13W bulb which may interfere with this one.

Crosstrek owners WITH steering response fog lights (SRF) can use this bulb. However, for Crosstrek owners WITHOUT these, you can purchase our lamp assemblies which will modify your light to an H11 socket (ie Glass replacement fog light housings).

Compatible with:

  • OEM fog light housings
  • OEM Halogen Headlights
  • Glass replacement fog light housings
  • OLM Bi Xenon Projector housings

Warranty: 1 year
IP rating: IP67
Minimum Light Output: 3520 lumens per pair
Maximum Light Output: 4000 lumens per pair
Approximate Wattage: 20-25 watts each


HIDs are great for certain applications. A small, thin plastic housing is NOT one of them.

This controlled testing shows the results of a 35w HID kit mounted inside the stock 2015 WRX / STI fog light housing.


In the picture below, you can see the extent of the damage on the inside of the casing.

For this application, the OLM Alpha LED fog light bulb is a great solution. It also results in much less glare than an HID kit.

Phillips Z ES LED Chip

LUXEON Z ES is a high-power 1.6mm x 2.0mm LED that enables never before seen color consistency, luminance, flux density and design flexibility for lighting solutions because it's the first ever 1-step MacAdam Ellipse warm white LED. LUXEON Z ES is undomed, a feature that provides un-matched optical flexibility for precise beam angle control. Tested and binned at application conditions, 85°C, the LUXEON Z ES emitters are an ideal choice for indoor and outdoor light sources requiring superior beam angles and superior results.

The OLM Alpha HD setup uses 8 of these precision chips to make for a competent replacement for OEM halogen bulbs.

Current Draw

Efficiency is high on this bulb's list of positive traits. As seen in the picture, at 13.5V this bulb is only drawing 1.5 amps. Power is 20.25W at this temperature.

Tuned Light Output

Straight out of the box, the OLM Alpha HD offer superior total light output and uniform color. With the adjustable base, you can rotate the light as required to change the focal length and aim of the LED chips. This ensures that the setup results in usable light which will help guide you through the hours of dusk and night.

The heatsink is also reversible if your application demands more space towards the rear of the bulb.

Plug and Play Installation

Installation of the H11 OLM Alpha HDs is extremely simple. If the socket fits, that's where it goes! The LED driver to bulb connections come with rubber seals to make sure the connection remains watertight.

The kit comes with an allen wrench for modifying the focal length of the bulb. Simply loosen the screw and rotate the base until it is in the desire position. Once you are satisfied with your setup, tighten it back down. Do not overtighten.

The allen key can also be used on the heatsink to reverse the orientation to create extra space towards the rear of the bulb.


With OLM products, for a period of 1 year after the purchase, just e-mail us here and let us know about your issue.

Our trained staff will troubleshoot the product with you if required. They usually ask for a photo or two. If the issue still exists, we send you out a new item free of charge! You will not have to pay shipping to return your item or receive another.

SubiSpeed only offers HID relays when they are possibly required. We have tested the current draw of this kit and found that it does not exceed the factory wiring.

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