IBL Pacs

What is the advantage of using a 12V MR16 50W tungsten halogen (TH) fitting over using a 50W TH GU10 mains fitting?
A 50W 12V MR16 TH lamp has almost twice the light output of a 50W TH GU10 mains lamp. The colour of light from a 12V TH lamp is also whiter than the light from a mains TH lamp, which brings out the true colour of decorations, fittings and furnishings.

Are IBL Pacs supplied complete with lamps?
Yes, IBL Pacs are supplied complete with lamps.

How do I wire up my IBL Pac terminated electronic transformer?
All IBL terminated electronic transformers are clearly labeled with mains supply and secondary connection details. The termination covers are removed either by unscrewing the single clamp screw (ELT, PC), or by prising-off the cover (EPC) with the aid of a terminal screwdriver as described in the installation instruction leaflet.
Further information can be found in the IBL DATA SHEETS or INSTRUCTION LEAFLETS in the download section.


What type of dimmer can I use with my IBL Pac dimmable electronic transformers?
IBL dimmable electronic transformers are designed to work with either leading edge, or trailing edge phase control dimmers.

Why do IBL Pac electronic transformers give no output drive until a lamp is connected?
IBL Pac electronic transformers require a lamp to be connected to the output to enable the drive circuit. If a lamp is not connected, the transformer will shut down. This feature protects the transformer against damage resulting from driving into an open load, and conserves energy by shutting down the transformer in the event of lamp failure.

Why do I get strange voltage readings when I measure the output of my IBL Pac electronic transformer?
The output from an IBL Pac electronic transformer is at a high frequency, about 35kHz, modulated at 100Hz. If you use a ‘standard electrician’s multimeter’ to measure the output voltage you will get a reading that bears no relation to the actual output voltage. This is because the meter is not able to convert the complex waveform into an accurate rms voltage reading.
To be able to get an accurate measurement, a ‘true-rms’ meter should be used with a bandwidth of at least 50kHz.

What are the light output comparisons between compact fluorescent lamps (CFL), and tungsten GLS lamps?
Here is an approximate comparison. As you can see, the energy savings are enormous!
Tungsten/CFL - 40W/10W, 75W/18W, 100W/26W, 150W/32W


What is the life comparison between compact fluorescent lamps (CFL), tungsten halogen lamps and tungsten GLS lamps?
On average, a tungsten GLS lamp lasts for 1000hrs and a tungsten halogen lamp lasts for 2000hrs, whereas a CFL lasts for typically 10,000hrs.