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4’ LED T8

4’ Fluorescent T8

Tube projected lifespan

  50,000 hours

 8,500 hours

Watts per tube

12w

36w (+15% ballast) 41w

Cost per tube

£40

£2

KWh of electricity used over
50,000 hours

600

2050

Cost of electricity @ 14p per KWh

£84

£287

Tubes needed for 50k hours of use

1

6

Equivalent 50k hours tube expense

£40

£12

Total cost for 50k hours

£124.00

£299.00