T8 to T5 energy saver

Total cost

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13,50 (3 st * 4,50)

 36,- (8 st * 4,50)

Replacement cost  

13,50 (3 st * 4,50)

 16,- (8 st * 2,00)

Lamp 

3 pieces  

8 pieces

Total

4,50/lamp

4,50/lamp

Replacement cost  

3 stuks (50.000/18.000) 

8 stuks (50.000/6.000)

Amount of lamps necessary

4,50

2,-

Price lamp

T5/35W 

TLD/58W

The maintenance cost, measured over the whole lfife span of our adaptors (50.000 burning hours):

The life span of the adaptor is about 50.000 hours. The total energy saving, measured over the whole lifecycle per lamp comes down to:
(50.000/5.000)* 19,50 = 195,00

19,50

Total energy savings per lamp per year:      

0,13

Price per kWh:

(360-120) = 150 KW

Savings per lamp:

(5.000*42)/1.000 = 210 KW 

Annual cost T5/35W:

(5.000*72)/1.000 = 360 KW 

Annual cost TLD/58W:

42 Watt/h

Energy used T5/35W:

72 Watt/h 

Energy used TLD/58W:   

5.000 

Hours per jaar:

50 

Weeks per jaar:

100 

A conventional TLD/S8W lamp uses electrical energy at a rate of 72 Watt. A T5/35W lamp uses 42 Watt, an energy cut of 30 Watt/h per lamp.
This means;

3.450 lm/W

3.650 lm/W

T5/35W

3.100 lm/W

5.200 lm/W

T8/58W

after 2 years

New

For a T5/35 Watt tube you save 104 lm/W ( at 35oC ).
For a T8/58 Watt tube you save 86 lm/W ( at 25oC).
On an average usuage of 100 hours per week and 50 weeks per year, the TL tubes burn 5.000 hours per year. It's common that the TL tubes are replaced after 2 years. Assuming that the perceived power of light reduces with 40% we come to the following;

How to install ?

The RE-ENERGY adapter makes it possible to easily adapt a T5 lamp in a T8 because in the adapter there is an integrated electronic ballast.

The T5 lamp is 5 cm. shorter and 12 mm. thinner than the T8 lamp and therefore not fit for matching in existing T8 fittings.

benefits of T5 lamps :

The RE-ENERGY T5 adapter is designed for installation of a T5 in a existing T8.