Page 1
Commercial Grade Light String
Installation instructions for LS-C, LS-I, LS-M and LS-MS light string product for permanent installation
WARNING: These products may represent a possible shock or fire hazard if improperly installed or attached
in any way. Products should be installed in accordance with these instructions; and current electrical codes
and/or the current National Electric Code (NEC).
CAUTION – To reduce the risk of fire, electric shock or injury to persons:
1. Commercial Grade Light String is intended for installation by trained, qualified electrical contractors.
2. Light string can be supported by steel guide cables, with zip ties and eyebolts. Proper diameter cabling
must be used for the maximum span distance between supports according to local building codes. See
chart on reverse side for maximum span distances between supports.
3. Suspend strings properly by attaching suspension cable (not provided) to solid support structures, such
as joists, beams or wall studs.
4. Light sockets must be suspended so that bulbs are facing down ONLY.
5. Keep combustible material clear of bulbs. Do NOT allow lamps or sockets to come into contact with walls,
ceilings, fabrics associated with shades, blinds or other materials. Lamps should hang freely in a
downward direction with a minimum of 3” space from the near
6. Do not cluster the bulbs.
7. Not intended for installation in ceilings, soffits, cabinets or other enclosed spaces.
8. Not intended for lighting aquariums.
9. Do NOT secure light string to buildings or other structural supports using nails, staples or other sharp,
conducting materials.
10. Avoid damage to the insulation during installation. Do NOT pierce or other wise compromise wire’s or
socket’s outer covering, jacket or sheathing.
11. Periodically inspect wire and sockets for degradation due to weather, UV light or other damage.
Promptly replace worn out light string.
12. DO NOT MOUNT THE LIGHT STRINGS WITH SOCKETS FACING UPWARD!
13. DO NOT OVERLOAD ANY SOCKET’S MAXIMUM WATTAGE RATING!
14. DO NOT OVERLOAD MAXIMUM WATTAGE CAPACITY IN ANY RUN!
est object.
WARNING – RISK OF ELECTRIC SHOCK!!
Disconnect power at source prior to wiring, re-lamping or servicing in any way.
LIGHT STRING SETS WITH POLARIZED PLUG
1. Do not connect the light string to any other string.
2. The plug-in light string sets are supplied with an attached polarized plug that will only fit into a polarized out let. If it does not fit, reverse the plug. If it still does not fit, contact a qualified electrician. Do not alter the plug.
3. DO NOT EXCEED THE MAXIMUM WATTAGE FOR LIGHT STRING SETS WITH ATTACHED PLUG:
600 WATTS MAXIMUM FOR 48 FOOT PLUG-IN LIGHT STRING SETS!
1250 WATTS MAXIMUM FOR 100 FOOT PLUG-IN LIGHT STRING SETS!
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Page 2
Commercial Grade Light String
Installation instructions for LS-C, LS-I, LS-M and LS-MS light string product for permanent installation
SUSPENDING LIGHT STRINGS
1. Light string must be securely attached to a support structure at each end of each span. See chart below
for maximum span distances:
MODEL # Max. span between supports
LS-M and LS-MS 24” spacing between sockets 10 sockets or 20’
LS-I with 15” spacing between sockets 15 sockets or 19’
LS-C with 12” spacing between bulbs 20 sockets or 20’
2. Secure light string to supporting hardware (eyebolts, brackets, etc., not provided) using cable
ties (not included). See Figure 1.
Figure 1
Structural support
Maximum span between supports for light strings
not supported by supplemental cable system
Supporting
hardware
3. For spans exceeding the above, use properly rated cable support system and cable ties (both not
provided) and follow local codes for suspended structures and loads.
Figure 2
CONNECTING LIGHT STRINGS TO POWER SOURCE
WARNING – RISK OF ELECTRIC SHOCK!! Disconnect power at source prior to
wiring and follow any required lock-out/tag-out procedures. Wiring instructions
intended for use by qualified and licensed electrical contractors.
1. Located power source in properly rated junction box (not supplied) for
indoor or outdoor application. See Figure 2.
2. Thread light string end through strain relief fitting (indoor installations) or
water tight strain relief fitting (outdoor installations) and into junction box.
3. Connect light string to power source: smooth wire to black (hot) wire; ribbed
wire to white (neutral) wire.
4. Ensure that no bare wires are exp
osed outside the electrical connections.
5. Power source may be switched with properly rated switch or dimmer control (not provided). For maximum
run distances, see Table 1 on following page.
Note: Use14AWG for connection to power source. Check local electrical codes for variations before installing or lamping light string.
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RV1004-KB
Page 3
Commercial Grade Light String
Installation instructions for LS-C, LS-I, LS-M and LS-MS light string product for permanent installation
RE-LAMPING LIGHT STRINGS
WARNING – RISK OF ELECTRIC SHOCK!! Disconnect power at source prior to re-lamping light strings. For
outdoor light strings, do NOT re-lamp light strings during rain or other inclement weather conditions.
1. Re-lamp light strings only during dry and calm weather conditions.
2. Unscrew existing lamps by lightly holding the socket in one hand and twisting the lamp counter clockwise. Lamps may be tight in the sockets. This is normal to prevent moisture from getting into
3. Replace with proper wattage and type lamps according to the following chart.
Table 1
the socket.
Maximum Load in Watts
MODEL #
LS-M and LS-MS
LS-I
LS-C
(per socket type)
25 (medium base)
10 (intermediate base)
10 (candelabra base)
*Maximum run for 48 foot plug-in sets is 600 watts, based on 24 sockets at 25 watts each maximum;
maximum run for 100 foot plug-in sets is 1250 watts, based on 50 sockets at 25 watts each maximum.
**Use 14AWG for hardwire connection to 120V power source. Check local electrical codes for variations
before installing or lamping light string.
4. DO NOT OVERLOAD SOCKETS OR LIGHT STRING!!
COMMERCIAL GRADE LIGHT STRINGS SPECIFICATIONS
Specifications
Socket Type
Max Bulb Wattage
LS-C Series
Candelabra Base
10 watts
LS-I Series
Intermediate Base
10 watts
Maximum Load in Watts
Plug-in (48’/100’)
600/1250*
N/A
N/A
LS-M Series
Medium Base
25 watts
Hardwire
1800**
1200**
1200**
LS-MS Series
Medium Base
25 watts
†
15 Amps
24 inches
1800 watts
†
Max Amperage Load
Socket Spacing
Maximum Run
†
Maximum run for LS-C and LS-I bulk reels is 1200 watts, based on 10 amps allowed on 16AWG wire;
10 Amps
12 inches
1200 watts
†
10 Amps
15 inches
1200 watts
†
15 Amps
24 inches
1800 watts
maximum run for LS-M and LS-MS bulk reels is 1800 watts, based on 15 amps allowed on 14AWG wire.
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RV1004-KB
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