If an 11 watt (0.01 kW) energy-saving lamp has the same lighting effect as a 60 watt (0.06 kW) incandescent lamp, and their service life is more than 3000 hours, the price of energy-saving lamp is 30 yuan, the price of incandescent lamp is 2.5 yuan, and the electricity charge is 0.48 yuan / (kWh), when they are used for 1500 hours, how much is the cost of energy-saving lamp? How much is the cost of incandescent lamp?

If an 11 watt (0.01 kW) energy-saving lamp has the same lighting effect as a 60 watt (0.06 kW) incandescent lamp, and their service life is more than 3000 hours, the price of energy-saving lamp is 30 yuan, the price of incandescent lamp is 2.5 yuan, and the electricity charge is 0.48 yuan / (kWh), when they are used for 1500 hours, how much is the cost of energy-saving lamp? How much is the cost of incandescent lamp?

Energy saving lamp cost: 0.01 * 3000 * 0.48 + 30 = 44.4 yuan
Incandescent lamp cost: 0.06 * 3000 * 0.48 + 2.5 = 88.9 yuan

An energy-saving lamp with a power of 10 watts costs 60 yuan, and an incandescent lamp with a power of 60 watts costs 3 yuan. The two lighting effects are the same, with a service life of more than 3000 hours

Energy saving lamp 10W, 3000 hours. Power consumption: 30 degrees. The electricity charge is calculated as 0.5 yuan, 60 + 15 = 75 yuan in total
Incandescent lamp 60W, 3000 hours. Power consumption: 180 degrees. Total: 60 + 90 = 150 yuan

An energy-saving lamp with a power of 10 watts (0.01 kW) costs 60 yuan; an incandescent lamp with a power of 60 watts (0.06 kW) costs 3 yuan
The lighting effect of the lamp is the same, and its service life is also the same (less than 3000 hours). If the electricity price is 0.5 kilowatt per hour, which kind of lamp can the happy people choose to save money?

Life cycle cost energy saving lamp: 0.01 * 0.5 * 3000 + 60 = 75
Incandescent lamp 0.06 * 0.5 * 3000 + 3 = 93

How to match the power of electric vehicle controller with that of motor? What's the relationship between the number of battery V and the speed of electric vehicle?
What's the difference between tube 12 and tube 24 in the controller? What's the impact?

1200W motor is equipped with 1200-1500w controller; the battery voltage is basically proportional to the vehicle speed; when the power of the controller is high, the driving range will decrease slightly; under the same power condition, the reliability of 24 tube controller is higher than that of 12 tube controller