MR16 and AR111 Low Voltage Tungsten Halogen Lamps to be banned in September 2013 with more efficient Infra-Red coated types not guaranteed beyond 2016.

This is the proposal in the Draft Legislation on reflector lamps that landed on my desk on January 24. Since then I have been trying to make sense of the implications. To be frank the actual proposal has come as quite a shock after being involved in both consultative and technical sessions on this over the past 3 years. During the most recent technical session in September we thought that the message had got across that there is no reasonable replacement for these LVTH lamps in the market now or in the foreseeable future that will meet the requirements for the professional applications . We also thought that the efficiency requirements would be set to deal with the older and less efficient classes of lamps such as the R40 , PAR38, PAR 30 and the like and permit the LVTH lamps to continue in use to replace the more critical applications for these technologies producing energy savings of 50% or more!

The delay in posting of this blog is that I have been trying to work out exactly what lamps are critically affected. The problem here is that the energy performance criteria have been set around an arbitrary value of Lumens in a 90 degree cone from the centre of the lamp. This value is just not something that is published by lamp manufacturers. It has no sense or use in the consideration of reflector lamps and can only be properly measured using a goniphotometer, a seriously expensive and relatively rare piece of kit! Again this was pointed out to the technical meeting particularly by the individual countries representatives who will need to use these to undertake market surveillance in order to enforce these regulations.

So I am at this point unable to determine what lamps fall foul of this newly invented and complex metric, the “Maximum Energy Efficiency Index” (MEEI) all I can rely on are the statements in the guidance notes:

Stage 1 (2013)

If Φuse ≤ 450 lm : MEEI

< 1.2

Poor conventional low voltage halogen lamps (D class) are phased out even at low lumen outputs already in Stage 1.

If Φuse >

450 lm : MEEI < 0.95
Phases out quality conventional low voltage halogens starting with high lumen outputs (12V 50W MR16 lamp). Leaves only B-class enhanced lamps
(infrared coated or xenon filled)

Stage 2 (2014)

MEEI <  0.95

Completes the phase-out
started in Stage 1, now
applying to low lumen
output lamps.

Stage 3 (2016)

MEEI <  0.95

The legislation will be reviewed in 2015 meanwhile the lamp industry has no guarantee that TH IRC lamps will be permitted beyond 2016 therefore have no guaranteed return on investment to buy the necessary machinery for the IR coating process. At any event the technical meeting was advised that both the machinery and coating materials have become a monopoly supply in Europe so prices are very likely to increase significantly in the short and medium term.

The legislation also limits efficiencies of LED solutions to points that just cannot be achieved by high quality colour rendering devices and really fails to address the problems in achieving colour consistency and clean narrow beam angles. The meeting in September was also told that in particular MR16 LED lamp replacements could not have their lives guaranteed as components in the integral power supplies are running beyond their design limits.

So we are now in a position where we cannot determine the MEEI of currently available lamps so we just do not know how to correctly advise our clients for whom we have specified LVTH solutions over the past 25 years. As and when the lamp manufacturers provide responses to this I will update this information.

Kevan Shaw 6 February 2012