This article is part of our engineering review archive and documents the packaging, construction, optical performance, temperature and operating noise of one luxfighter P36-H11 LEDr sample.
Test conditions
The lamp operated at 13.2 V in a 26°C test environment. Illuminance measurements were recorded after a 30-minute warm-up at the defined E-Mark measurement-panel points on a screen 3.5 m from the lamp. Emitting-area surface temperature was recorded after 30 minutes, and operating noise was measured at 3.5 cm from the cooling fan.
What this review found
The luxfighter sample combines a slim rectangular emitter blade with one rectangular phosphor area on each side, a measured 2.468 mm distance between the two opposing LED emitting surfaces, an external driver box and an open radial heat sink with an integrated fan. The mounting photographs show a keyed black H11 retaining interface and red sealing ring, but no separate metal retaining spring is visible. This layout keeps the emitter blade narrow and moves part of the electronics away from it, while the driver, cables and rear cooling assembly still require installation space behind the headlamp.
The optical record is weighted toward the centre and right side of the low beam: 50V measured 1,090 lux, 50R measured 1,390 lux and EMAX measured 1,523 lux, while B50L measured 35.5 lux. The white-wall image and rainbow map both place the strongest region near the central-right rise. After 30 minutes, the thermal image displayed a 110°C emitting-area hotspot and a 54.1°C secondary point; operating noise was 51.3 dBA at 3.5 cm. These results describe this sample’s specific trade-off: concentrated central-right output and a separate driver, paired with active cooling that remains measurable in both temperature and close-range noise.
Packaging and included parts
The reviewed two-lamp package contained two P36-H11 LEDr lamps with external driver modules and H11 leads, internal foam support, a cable tie and printed instructions. The package and instructions identify the product as a 12 V, 20 W H11 LEDr and display E57 ECE R37 homologation markings. The ECE R37 LEDr verification guide explains how category and approval-number evidence should be checked.
H11 interface and lamp construction
The sample uses a keyed H11 mounting interface, a red sealing ring, a rectangular aluminium emitter blade, an open radial heat sink, an integrated rear fan and an external driver connected between the lamp and H11 plug.
LED emitter structure and Box system
Each side of the slim blade carries one rectangular phosphor emitting area. The micrometer image records 2.468 mm between the two opposing LED emitting surfaces, providing a direct physical measurement of the light-source geometry.
Box system emitting-area inspection
The unlit and illuminated Box system images record the position and orientation of the rectangular emitting area in the reference frame. They document source geometry; the downstream beam-pattern and illuminance records show how that source behaved in the stated optical setup.
White-wall beam pattern
The recorded low beam has a visible horizontal cutoff and right-side rise, with the brightest region concentrated around the central-right step. The field becomes progressively weaker toward both outer edges. The ECE low-beam pattern guide provides background on the screen regions used when reading this type of image.
Rainbow map and hotspot distribution
The false-colour map places the highest-intensity yellow region immediately left of the right-side rise and inside a broader green central band. Intensity then falls through cyan to blue toward the outer field. This position agrees with the strongest area visible in the white-wall record and with the higher 50R and EMAX readings.
Complete nine-point illuminance results
All recorded positions are reported separately. The 1,390 lux reading at 50R and 1,523 lux EMAX value support the central-right concentration visible in both optical images; the remaining values show how output falls across the centre line and outer measurement points.
| Measurement point | Illuminance |
|---|---|
| B50L | 35.5 lux |
| 50V | 1,090 lux |
| 75R | 962.3 lux |
| 50R | 1,390 lux |
| 25L | 352.2 lux |
| 25R | 383.5 lux |
| 50L | 459 lux |
| 25V | 1,052 lux |
| EMAX | 1,523 lux |
Temperature and operating noise
After 30 minutes, the thermal image displayed a highest emitting-area surface reading of 110°C and a secondary point of 54.1°C. The 110°C value is a measured surface hotspot, not an LED junction-temperature or service-life result. Operating noise was 51.3 dBA at 3.5 cm from the fan. Together, these records show that the open active-cooling assembly was operating while the bench still recorded a 110°C local surface reading and 51.3 dBA close-range noise.
luxfighter H11 LEDr FAQ
Author: Jack Liu, Co-founder & Product Director, LEDOAUTO
Regulatory review: LEDOAUTO Engineering Team, verified against official UNECE documents
Last reviewed: 19 Aug 2026
References
E4E H11 LEDr Review: Construction, Beam Pattern, Illuminance, Temperature and Noise
OSRAM H11 LEDr Review:Construction, Beam Pattern, Illuminance, Temperature and Noise
Philips H11 LEDr Review:Construction, Beam Pattern, Illuminance, Temperature and Noise
EB H11 LEDr Review: Construction, Beam Pattern, Illuminance, Temperature and Noise
