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Cost and Benefit Analysis of T5 Fluorescent Lamp
How to calculate?
5 feet T8 tube as 58w + ballast about 7w = 65 watt
4 feet T8 tube as 36w + ballast about 6w = 42 watt
3 feet T8 tube as 30w + ballast about 5w = 35 watt
2 feet T8 tube as 18w + ballast about 4w = 22 watt
5 feet T5 Retrofit Fluorescent Fixtures = 35 watt
4 feet T5 Retrofit Fluorescent Fixtures = 25 watt
3 feet T5 Retrofit Fluorescent Fixtures = 20 watt
2 feet T5 Retrofit Fluorescent Fixtures = 13 watt
T8 tube electrical power cost per year =
Number of T8 tube x Hours per day x 365 days / 1000 watt
T5 Retrofit Fluorescent Fixtures electrical power cost per year =
Number of T5 tube x Hours per day x 365 days / 1000 watt
Cost benefit on electrical power =
( Total cost of T5 - The cost of T8 ) / cost benefit per year x 365 day
Days of cost back =
Cost of T5 / cost benefit per year x 365 day
5 feet fluorescent tube for
, use
hours per day;
4 feet fluorescent tube for
, use
ours per day;
3 feet fluorescent tube for
, use
ours per day;
2 feet fluorescent tube for
, use
hours per day;
The cost of every kilowatt per hour is HK$
Your electrical power' cost for use of lighting is about
HK$
per year
Assume that using T5, the cost becomes about
HK$
per year
The cost benefit of T5 is about HK$
per year!!
Days of Cost Back
Please cantact us for a quotation
Single：HK$
5 feet fluorescent tube for
Single：HK$
4 feet fluorescent tube for
Single：HK$
3 feet fluorescent tube for
Single：HK$
3 feet fluorescent tube for
Cost back about in
days!!
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