Switch to Use LED lightings Now!
Assuming average household use 8 light bulbs, on HK$1 per kilowatt basis (HK$1/kWh); if we use 20W LED light bulb instead of 100W incandescent light bulb, lighting for 8 hours per day, a saving of HK$1,869 can be realized.
Electricity Bill = Kilowatt Hour (kWh) x Unit Rate Charge ($/kWh)
200W LED Light Bulb: 200W/1000 x 8 hours x 365 days x HK$1/kWh x 8 pieces = HK$467.20
100W Incandescent Light Bulb: 100W/1000 x 8 hours x 365 days x HK$1/kWh x 8 pieces = HK$2,336
Annual Saving of HK$1,868.80 (Up to 80% of electricity bill)
- LED light is cool light which only produces 3.4 btu’s/hour as compared to 85 for incandescent bulbs. This will help to cut down the air conditioning electricity charge.
- Fuel Clause Adjustment has not been included in the above bill calculation.
- Above information is for reference only.