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ET-LAD55L (Dual Lamp) projector lamp with module
Fits 14 projector models from Panasonic.
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Where a PT-D5500, PT-D5600 or PT-DW5000 is fitted with two lamps rather than one for redundancy, ET-LAD55L is the module Panasonic specifies, rated at 300 watts with a 4000-hour life. Fourteen dual-lamp model variants take it, spanning the PT-D5500, PT-D5600, PT-L5500, PT-L5600 and their TH-branded counterparts.
Panasonic has also listed this same lamp under the code ET-LAD55LW, so either number orders the identical part. Dual-lamp installations typically run one lamp while the other stands by, which can extend the practical interval between replacements compared with a single-lamp setup carrying the full load alone.
At a glance
- Wattage — 300 W
- Rated life — 4,000 hours
- Type — Projector Lamp with Module
- SKU — LA-09879
- Compatibility — 14 projector models
Common questions
What's the difference between ET-LAD55L and ET-LAD55LW?
They're alternative part numbers for the same dual-lamp module — Panasonic has used both codes for this part, so ordering under either number brings the identical lamp and housing for your PT-D5500 or PT-D5600 series projector.
Do I need to replace both lamps at once in a dual-lamp system?
Not necessarily — many dual-lamp projectors let you run and monitor each lamp separately, so it's common to replace only the one that has failed or reached its hour limit, keeping the other in service.
Does ET-LAD55L fit the same projectors as ET-LAD55 (Single Lamp)?
The projector bodies overlap — PT-D5500 and PT-D5600 appear on both lists — but the lamp itself differs, since the dual-lamp configuration uses ET-LAD55L while the single-lamp version uses the separate ET-LAD55 code. Check which your unit is fitted with.
What endurance does the dual-lamp ET-LAD55L offer in a PT-D5500 pair?
It's rated for around 4000 hours at 300 watts, higher than some comparable single-lamp modules, which reflects the redundancy and load-sharing built into dual-lamp large-venue projector designs like the PT-D5500 and PT-D5600.
Which TH-branded models take this lamp?
TH-D5500, TH-D5600 and TH-DW5000, all in their dual-lamp configuration, are on the confirmed fitment list for ET-LAD55L — the TH prefix is simply an alternative model designation Panasonic has used for these same projector bodies.
This is a complete module — bulb already seated in its housing, so it drops straight in.
What's the difference between ET-LAD55L and ET-LAD55LW?
They're alternative part numbers for the same dual-lamp module — Panasonic has used both codes for this part, so ordering under either number brings the identical lamp and housing for your PT-D5500 or PT-D5600 series projector.
Do I need to replace both lamps at once in a dual-lamp system?
Not necessarily — many dual-lamp projectors let you run and monitor each lamp separately, so it's common to replace only the one that has failed or reached its hour limit, keeping the other in service.
Does ET-LAD55L fit the same projectors as ET-LAD55 (Single Lamp)?
The projector bodies overlap — PT-D5500 and PT-D5600 appear on both lists — but the lamp itself differs, since the dual-lamp configuration uses ET-LAD55L while the single-lamp version uses the separate ET-LAD55 code. Check which your unit is fitted with.
What endurance does the dual-lamp ET-LAD55L offer in a PT-D5500 pair?
It's rated for around 4000 hours at 300 watts, higher than some comparable single-lamp modules, which reflects the redundancy and load-sharing built into dual-lamp large-venue projector designs like the PT-D5500 and PT-D5600.
Which TH-branded models take this lamp?
TH-D5500, TH-D5600 and TH-DW5000, all in their dual-lamp configuration, are on the confirmed fitment list for ET-LAD55L — the TH prefix is simply an alternative model designation Panasonic has used for these same projector bodies.
Other Panasonic lamps in the catalogue. Codes in the same family often differ by a single character, so check the part number against your old lamp before ordering.
