Will I overload my circuit of 15 amps?

My question is regarding load limits on a 15 amp circuit. Currently I have a circuit which is leading to 1881 watts. This circuit contains mostly all my lighting fixtures in my house. Now I understand that I am in the ceiling A circuit of 15 however, when I figured accessories for maximum power rating and not factored in that I have the energy saving bulbs in most the fixings. My question is I can go out with the addition of four 6 "lights can be on this circuit?. Since I have low voltage light bulbs in the circuit especially and, even with these new lights I can have energy saving bulbs in them

1800 watts on 15 amp circuit is maximum. Its circuit 15 amp is already overloaded and a fire that will turn hazard.Assuming is # 14 copper or aluminum # 12, its maximum power must not be over 1800 watts. 15 = Circuit 120v X Amp 15amps = 1800 watts maximum. 20 amp 120v circuit = x 20amps = 2400 watts maximum. Rule of thumb for building inspectors and insurance companies is the 80% 80/20% rule.Take 1800 watts, which gives you 1440 and which, by dividing the total power of the lamps use.Any intends to total until 1440 should be secure and allows 20% for safety. Branch off to a new track and maybe on the side of the security branch some of the other lights off in a circuit and whether new or room circuit that has left without exceeding the 1440 number 80% or in this case. 15 – $ 35 cost of $ for the wire and a switch back to 2 is much less than the cost to replace all articles with your home or, even worse when the circuit shorts out at 3 am. You can also check the National Electrical Code (NEC) or National Fire Protection Association (NFPA) website for more information. Good luck.