Consider this, you do not need to run romex wire, you can hook
it up with low voltage wire this will save time and money.
The marks in the picture above of the driver is where you connect the LED.
Connect "+" on the board to "+" on the LED below and "-" to "-"
Connect your 12V source on the backside of the driver.
"+" goes in the middle and "-" to the outer ring.
An LED driver is a self-contained power supply that has outputs matched
to the electrical characteristics of your LED or array of LEDs.
There are currently no industry standards, so understanding the electrical characteristics
of your LED or array is critical in selecting or designing a driver circuit.
Drivers should be current-regulated (deliver a consistent current over a range of load voltages).
Drivers may also offer dimming by means of pulse width modulation (PWM) circuits
Each 9led 44mm festoon bulb uses 30 milliamps of power. Costs $.01 to light for 24 hours a day for a whole month!
I'm thinking of using this in my curio cabinet
I'm using three 25 watt incandescent bulbs in my bathroom right now, I'm going to replace them with these LED bulbs below
I use this LED bulb in my can light in the corner of the room, this is an exact match
to a 30 watt incandescent bulb, it has a E12 socket.I needed to convert from an E12 to an E27, its a little long