Can consumable waste be reduced?
Yes, many lighting components, including consumables, are available as longer life versions. Standard ballasts are rated for 50,000 hours, but 100,000 hour versions exist, but only in the most common formats. Standard T5 fluorescent lamps will last 25,000 hours, but there are versions that will last over twice as long. As above (in #33), using LED emergency lighting would reduce battery waste. Some LED technology in the right general lighting applications offers the potential to offer a zero consumable service life of 50,000 hours.