Keldan LUNA 4X User manual

For Professionals Who Know The Difference.
LUNA 4X
Operating InstructionsOperating Instructions
Underwater Video Light

Luna 4X Operating Instructions 2
BEFORE STARTING
• Read operating instructions.
• Keep O-ring clean and grease regularly.
• For storage charge the battery to 30-60%. Storing a fully charged or empty battery is
detrimental to the battery’s life in the long run.
• Discharge/charge battery at least every 6 months.
• Remove the battery from casing when storing the light.
• Charge the battery before every dive.
TABLE OF CONTENTS
Instructions....................................3
Magnetic Switch............................3
Battery Charging ...........................3
Battery Maintenance.....................3
Battery Protection Circuit ..............3
Safety Light...................................3
Charge Level Indicator..................3
Use in Air.......................................4
How to Open the Casing...............4
Maintenance .................................4
Storage and Transportation ..........4
Warranty .......................................4
Liability ..........................................4
Safety Instructions ........................5
Spectral Power Distribution .........5
Beam Angle....................................5
Technical Data ...............................6

Luna 4X Operating Instructions 3
1. MAGNETIC SWITCH
Attention: the light uses a magnetic switch, so your compass reading may be off when you hold it
close (within 5cm or 2”) to the black on/off switch.
2. CHARGE OF THE BATTERY
Only use the supplied Li-Ion charger to charge the battery. For best results, the battery should be
charged at room temperature.
3. MAINTENANCE OF BATTERY
It is not recommended to discharge the battery after each dive. Complete discharge after every use
may reduce life time of battery. We recommend the following service procedures:
• For storage remove battery from casing.
• Discharge and recharge the battery at least once every 6 months.
• Avoid deep discharge of the battery pack.
• Store battery with approximately a 30-60% partial charge in a dry and cool place.
• Charge fully before each dive.
• The storage of a fully discharged battery may cause permanent damage to the battery.
4. BATTERY PROTECTION CIRCUIT
The integrated protection circuit protects the battery from overload, overcharge and deep discharge.
5. SAFETY LIGHT
The safety light on the rear side of the battery pack can be activated by switching the light
into the TEST mode. It is activated as well if the main light is automatically turned off due to
low battery voltage.
6. CHARGE LEVEL INDICATOR
The charge level indicator lights displays the available energy by taking into
account charge and discharge currents. Over time the battery may not be able
to hold 100% of the charge and the effect will be shown on the indicator. If the
battery is only capable of holding 80% of its charge, the indicator will only show
80% instead of the full 100% after a full charge. Note that the charge level
indicator may be slightly out of synchronization with the effective available
charge after a long period of time. A full discharge will synchronize the display.
INSTRUCTIONS

Luna 4X Operating Instructions 4
7. USE IN AIR
The video light can also be used outside water but at low power level only. If the light gets too hot, it
slowly and automatically reduces the power to avoid overheating.
8. HOW TO OPEN THE CASING
Remove excess water from the outside before opening. Point the light slightly upward while opening
to avoid water from entering the housing.
Friction of the O-ring seal (and therefore force needed to open the cap) increases over storage time.
After long and deep dives the friction might increase too. To avoid high friction, regularly grease the O-ring.
9. MAINTENANCE
After each use rinse well with fresh water.
Care should be taken to avoid scratching of the O-ring seals. Keep seals clean of sand, hair, cloth
bersorsimilarmaterialsatalltimes.O-ringsofthebatteryscrewcapshouldberegularlyinspected
and cleaned. Occasionally apply small amounts of silicone grease for lubrication. If not treated, the
O-ring will fail to provide proper sealing causing the light to malfunction.
• Do not use sharp tools to remove the O-ring.
• Never use a battery which appears damaged.
• In case of a damaged lamp, contact your nearest KELDAN dealer.
• Do not remove front glass cover (high operating voltage).
• O-rings need to be replaced by KELDAN or an authorized dealer every 5 years.
10. STORAGE AND TRANSPORTATION
Battery and casing must be stored apart in a cool and dry place. Maintain battery pack according to
our recommendations. Separate battery pack from casing if traveling by air.
11. WARRANTY
The light carries a two-year warranty. Fill out and return warranty card within 14 days of purchase.
The warranty is limited to material defects which occur when correctly handling the product. The warranty
does not cover the battery.
KELDAN warranty coverage is void for defects as a result of improper use.
12. LIABILITY
KELDAN declines all responsibility for damages arising from any improper use of the LUNA 4X light
or as incurred by a third person.

Luna 4X Operating Instructions 5
The LUNA 4X video light produces an extremely powerful
and intense light.
• Never point directly at a person at close distance.
• Never stare directly into the light.
SAFETY INSTRUCTIONS
SPECTRAL POWER DISTRIBUTION
CAUTION. Possibly hazardous
optical radiaton emitted from
this product. Do not stare
at operating lamp. May be
harmful to the eye.
RISK GROUP 2
400 450 500 550
nm
Spectral Power Distribution
600 650 700
BEAM ANGLE
-60 -40 -20 0 20 40 60
degrees
air
water
Beam Angle

Luna 4X Operating Instructions 6
Battery (Li-Ion) 14.4V / 3,1Ah (44Wh)
Charging time 3-4 hours
Diameter / Length 7/17 cm
Weight (in water) 0,65 (0,2) kg
Maximum depth 200 m
Color temperature 5000 K
Color rendering index 82 CRI (Ra)
Beam angle in water at 50% intensity 90°
Beam angle in water at 25% intensity 110°
TECHNICAL DATA
Luminus Flux Candlepower Burn Time Electrical Power
6’000 lumen 2’600 candela 45 min. 55 watts
4’600 lumen 2’100 candela 60 min. 41 watts
3’200 lumen 1’400 candela 90 min. 27 watts
2’500 lumen 950 candela 140 min. 18 watts
1’700 lumen 750 candela 180 min. 14 watts
POWER SETTINGS

Luna 4X Operating Instructions 7
KELDAN GmbH
Bernstrasse 10
2555 Brügg
Switzerland
Tel: ++41 32 333 16 28
Fax: ++41 32 333 16 26
www.keldanlights.com
[email protected]
Subject to change without notice, August 2014