Neptun Light 42W Spiral CFL


Pros: Efficient and long lasting

Cons: Can't put on a dimmer switch. Flickers in some multiple bulb fixtures... like my ceiling fan.

These are an easy and inexpensive upgrade that will save a little power and a some money in the long run. Generally these kind bulbs aren't that great for outdoor use or anywhere you flick the light on for a second (like a closet) because they take a little while to reach full brightness. The neptune lights have fixed that problem making the bulbs good anywhere. I'm am really interested in the newer led bulbs that are supposedly more efficient on energy and you can use a dimmer switch with them.

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Neptun Light 42W Spiral CFL

The most compact CFL's on the market with FULL LIGHT OUTPUT. Saves up to 80% energy with comparable light output. High Luminous Efficiency: Up to 70Lm/W. Very long life: Up to 10 times longer than ordinary bulbs. New! Patented Amalgam Technology. Rapid Start with End of Life Protection and Electronic Preheat.

Energy Star Qualification
Additional Features
Average Life Hours10,000
Incandescent Wattage Equivalent200
Bulb ShapeSpiral
Base TypeMedium standard
Available Color TemperatureWarm white (2800k)
Release Date
Model Name/TypeMPNEAN/UPC