LEDs are the most efficient and lowest cost to operate lighting available. The UberLight 2000TL is rated for up to 60,000 hours of use.
A proprietary honeycomb lens cover insets the bulbs by 5 mm so there is no chance of the light shining in a passerby's eyes.
The UberLight's PC board converts the AC input to DC, therefore no transformer is required.
The 1000TL can be mounted to any flat surface and will fit into a ½” diameter opening.