G4 9x5730 SMD COOL WHITE 12vDC - #1978
Higher lumens version using the new 5730 type LED.
Replaces this glass MR11/G4 bulb in horizontal fittings and applications.
Operating voltage - 12vDC
Diameter - 25mm
Thickness of circuitry - 5mm
Net Weight - 4g
LED used - 9x Samsung 5730 SMD
Lumens output - 300lm
Viewing angle - 120°
Colour - Cool White
Voltage - 12 volt DC
Current control - constant current driver
Power Consumption - 3w
AC compatible - YES
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.