🔦 Public Notes – Plain Language Explanation
Device Tested: Sylvania H6024 LED Sealed Beam Headlamp (x1)
Date Tested: April 9, 2026
Part Number: H6024SL.BX
Standard Referenced: FMVSS 108
✅ Low Beam – PASS
• Meets all low-beam photometry requirements.
✅ High Beam – PASS
• Meets all low-beam photometry requirements.
✅ Color Test – PASS
• Color measurements were within the white zone, producing a beam that meets the standard.
🔍 What I Noticed During the Test
• This lamp is marketed as a sealed beam and includes the mechanical aim pads typical of that design, but it also has a small optical‑axis circle on the lens normally found on visually aimed headlamps, and it lacks the usual VOR or VOL markings that typically accompany that system. Even so, the beam pattern looked very similar to a VOR‑type lamp, with a sharp and stable cutoff that responded well to a VOR visual aim. Because that aiming method matched the lamp’s actual optical behavior, I chose to aim it using the VOR method.
• Even though the lamp is technically classified as a sealed beam and has its own specific photometry requirements under FMVSS 108, the beam pattern looked much more like a modern visual‑aim headlamp. Because of that, it made more sense to evaluate it using the LB2V and UB2 photometric tables, which are designed for that type of beam pattern. This gave a clearer and more accurate picture of how the lamp is intended to perform.
📘 Frequently Asked Questions
If you want a deeper explanation of how the lamps were tested or how to interpret the photometric data, the two decks below cover the full process:
Part 1 – How Headlamps Are Tested
CLICK HERE
Part 2 – How to Read the Test Results
CLICK HERE
CLICK ON THE IMAGE BELOW to view the photometric test report
