G4 9xSMD COOL WHITE 8~30vDC - #1970
This version has been updated please see newer options here.
Replaces this glass MR11/G4 bulb in horizontal fittings and applications.
Diameter - 28mm
Total Length of pins - 15mm
Thickness of circuitry - 6mm
Length of pins after circuitry - 9mm
Operating voltage - 8~30vDC (12vDC and properly regulated 24vDC systems)
Current control - constant current driver
Quantity of LED - 9 of the 5050 type SMD LED
Lumens output - 120lm
Viewing angle - 120°
Colour - Cool White
Colout temperature - 6000k
Life expectancy - 50,000 hours
What is the difference between Warm White and Cool White?
Warm White has a pleasant incandescent tone to the light whereas Cool White is a plain paper White.
The human eye naturally doesn't see Warm White quite as bright as Cool White.
In real terms of Warm White bulb has about 90% of the lumens efficiency of a Cool White unit.
The bad news ends there for Warm White bulbs.
Over the years we've seen a slow transition towards Warm White mainly due to the fact that Cool White got itself a black eye from the early LEDs going blue tinged.
In short - ladies far prefer Warm White to Cool White.
The men prefer Cool White as it is a slightly brighter work light.