Measuring the Brightest h4 led bulb of 2018, Yes in this video very popular eight led bulbs including a halogen for reference was tested.
If you have a led bulb or planing to buy this video will help you to know the bulb better.
A short DETAIL information of LUMENS is explained at the beginning of the video
Lumens are measured typically by slightly more sophisticated instruments like goniosphere or integrating sphere (used in this
Lumen measurement (or) rating is how much total visible light is EMITTED (or) produced by a light source (Bulb) in all directions.
NOTE : BRIGHTER BULB DOSE’T MEAN IT IS A BETTER BULB.
GOOD BRIGHTNESS, CORRECT COLOR KELVIN AND PERFECT BEAM PATTERN ALL THESE MAKES A PERFECT BULB
All Bulbs tested are H4 type, Each bulbs HIGH beam lumens (Brightness) is measured at the Starting and at FIFTH minute and at TENTH Minute
Low Beam lumens (Brightness) is tested at starting and at FIFTH minute.
Bulbs are randomly tested (Not prioritize by Brightness or Power or Year). Most bulbs are from 2017
IT IS A 23 MIN VIDEO YOU MAY GET BORED TO WATCH ALL THE READINGS
So JUMP TO YOUR FAVORITE BULB BY TIME LISTED
00:37 List of bulbs tested
1:00 No:1 PHILIPS MZ CHIP One of the oldest but Brightest
3:39 No:2 sngl bulb,
6:00 No:3 Cree xhp 50 three side chip bulb
8:31 No:4 Cree xhp-50 quad chip
11:10 No:5 cree xhp-70 chip
13:45 No:6 cree xpl quad led
16:12 No:7 csp chip by OEDRO
19:05 No:8 HALOGEN H4 100/90 watts OUR VERY OLD HERO
Due to less space in description, Unable to post the lumens data lost or gained for each bulb individually, So posted in the last part of the video.
22:25 DETAIL LOSS OF LUMENS IN NUMBER AND IN PERCENT FOR EACH BULB EXPLAINED..