Christmas Light Specifications

PLEASE NOTE: The following is for informational purposes only. You will need to check with your local licensed electrician for further information regarding your specific electrical requirements. ***
Formulas to Use When Working with Electricity    
  Watts/Volts = Amps Volts x Amps = Watts  
Example: 200 C9-7 watt Bulbs = 1400 watts (200 x 7)
1400 watts/110 volts = 12.72 amps
110 volts x 20 amps (Breaker) = 2200 maximum watts available
Note: Never use more than 80% of the breaker’s capacity.
Example:  Only use 16 amps of a 20-amp breaker’s capacity; 12 amps of a 15-amp breaker’s capacity; or 24 amps of a 30-amp breaker’s capacity.

  Rule of Thumb for Normal Application on 20-amp Breaker:

  (99) 35-lite miniature light set = 16.06 amps [(99 x 35) x .51 watts per bulb/110] = 16.06 amps  
  (33) 100-lite miniature light set = 15.3 amps [(33 x 100) x .51 watts per bulb/110] = 15.3 amps  
  (200) C7-7 watt light set = 12.72 amps [200 x 7 watts per bulb/110] = 12.72 amps  
  (300) C7-5 watt light set = 13.63 amps [300 x 5 watts per bulb/110] = 13.63 amps  
  (200) C9-9 watt light set = 16.36 amps [200 x 9 watts per bulb/110] = 16.36 amps  
  (200) C9-7 watt light set = 12.72 amps [200 x 7 watts per bulb/110] = 12.72 amps  
  (2) 150'/1-circuit 9mm or 13mm Plastic Neon (18 lights every 1.5') = 14.72 amps  
    [(2 x 1800) x .45 watts per bulb/110] = 14.72 amps  
  (1) 150'/2-circuit 9mm or 13mm Plastic Neon (36 lights every 1.5') = 14.72 amps  
    [3600 x .45 watts per bulb/110] = 14.72 amps  


In addition to not overloading breakers, care must be given to not overload individual electrical sets. The following specs are maximums for continuous runs or sets plugged end-to-end of different types of lights that can be connected together in any one direction. If more lights are necessary to complete the project, a power splitter (3-way) or a separate power cord/extension cord must be used.

MINIATURE LIGHTS - Check with manufacturer's specifications for wattage of each bulb.
Typical miniature lights use approximately .51 watts per bulb.
    (6) Sets of 35-light strand*
    (3) Sets of 50-light strand*
    (3) Sets of 70-light strand*
    (3) Sets of 100-light strand*
    *NOTE: Based on current UL-Rated specifications. Subject to change.

    (2) C7 or C9 25-light strand (20awg with 5amp fuse)
    (2) C7 or C9 100-light commercial strand (18awg without fuse)
    (200) C7 or C9 lights on continuous run from 1000' spool

    (1) 150', 9mm or 13mm, 1- or 2-circuit

Holiday LiteSource, Inc., dba LiteSource, warrants our products to be free of defects and workmanship for a period of 90 days from date of shipment with proof of purchase. Holiday LiteSource, Inc., assumes no responsibility in any event for payment or incidental or consequential damages, including, without limitation, costs relating to removal, installation or reinstallation of the products, or damages for personal injury or property. These products may present possible shock or fire hazard if not installed properly or altered in any way. This warranty is voided for products not installed according to current local codes and/or the National Electrical Code. When products are improperly installed, subjected to electrical overcapacity, damaged due to inappropriate handling, submerged in water, broken or have been disassembled the warranty is voided and the items cannot be not be exchanged, returned or refunded.