Preliminary study of the light.
Musings of a curious mind.
Chip Scale Package is a new way they manufacture LED lights that no longer needs soldered wire connections (as used in SMD) which reduce thermal resistance, reduce heat transfer path, and reduce possible failure points and other things that only are a care to light nerds. CSP LEDs were initially used in mobile phone screen backlights and tablet computers where the properties they have for color consistency were leveraged.
Different classes of CSP LEDs:
- CSP 1860, which tolerates up to 30W of the power and gives out light for 8,000 lumens. It has the lowest cost in manufacturing.
- CSP 3570, which is one of the most used middle-end chips. It tolerates from 45W to 60W of the power with 10,000 lumens of the brightness.
- CSP 5530, which is the high-end chip. 60W of the power and 12,000 lumens of the brightness position it as a slightly expensive product.
- CSP 7545, which is a high-end chip for its 80W of power and 15,000 lumens of the brightness. Strict manufacturing arts makes it a high-end product.
The connector and bulb style used in the headlight:
Looking at some CSP headlights such as this one:
LED lights can lose up to 50% or more of their light output from overheating. When first turned on most of these lights will output a spike in lumens that rapidly drops to a baseline (25% drop on average) of brightness output which is what is sustainable under active fan cooling. If you block the fan blades and allow the heat to build up you can measure a further drop off in brightness output.
I have not removed the headlight cowling assembly and done any further measurements for a while but when pondering the ability to actually fit lights such as these I do notice these styles of actively cooled LED lights have external controllers so that may give some flexibility in routing wires and ultimately fitting in a bulb.
They do have passively cooled H4/9003/HB2 Hi/Lo LED bulbs for less money, but these are mostly CSP 1860 low end LEDs. Products such as this one don't actually specify the CSP number of their LEDs which is annoying. Some will claim they use CSP 3570. I have not found any yet that claim CSP 5530 or higher.
Edit:
LED Geek Article
https://www.ledsmagazine.com/leds-ss...uture-magazine