Firefly Phototherapy

A highly effective phototherapy device designed for treatment of neonatal jaundice.


MTTS Product Line

The MTTS Firefly is a state-of-the-art phototherapy device designed for effective treatment of neonatal jaundice. Developed in collaboration with Design that Matters (Massachusetts, USA), and East Meets West Foundation (California, USA), the machine features intuitive design, double-sided lighting, compact size, user-friendly control panel, and removable single-infant bassinet. Firefly is designed to treat newborn jaundice in the mother’s room – the best way to support mother-child bonding and breastfeeding.
Clinical evaluations indicate that Firefly’s double-sided design reduces total treatment time by 40% on a typical patient compared to single-sided LED phototherapy, allowing earlier discharge from the hospital, lowering incidence of newborn infection and freeing resources to treat more infants.

CE Mark with Number


Now with new accessories:
– Transparent gel mattress
– Transportation trolley


The Firefly was designed through a partnership between MTTS,  Design that Matters (Massachusetts, USA), and East Meets West Foundation (California, USA).


The Firefly key innovation is to use top and bottom phototherapy with long-life, high power LEDs, providing intensive treatment in a compact package.


The Firefly can be installed directly in the mother’s recovery room, thus promoting mother-child bonding, regular breast-feeding and close maternal supervision.

Key Features

Compact form fits in an infant cart or mother’s bed.
Handholds facilitate easy portability.
Tight seams to prevent dirt build-up.
Curved surfaces for easy cleaning.
Sealed to keep out dust, and liquids (IPX3).
No moving parts, no internal fans.
Medical-grade power supply (not pictured).

1. Top Light
Fixed at the most clinically effective height.
Slim form for easy patient observation.
Curved top prevents placement of objects that may fall on the infant.
Soft edges to protect infant during placement.

2. Bottom Light
Durable thick-walled plastic.
Tilted bottom directs heat off back edge of device.

3. Bassinet
Removable for patient transport and diagnostics.
Comfortable handhold around the rim.
Clear scratch-resistant plastic for easy observation.
Smooth surface for quick wipe-down.

4. Control Panel
Single power button controls both lights.
Single light intensity setting.
Treatment hours and total device hours display.



The Firefly provides high-intensity light output in an intuitive package. The toplight is fixed at the most effective height for precise delivery of phototherapy.



The compact form makes the Firefly fit to be used in the mother’s room, even in space-constrained neonatal care settings, promoting a family-centred healing environment.


Cost Efficient

The Firefly combines low initial cost with long-life LEDs that operate with only 30 watts and are rated to last up to 60.000 hours before requiring replacement.

Technical Specifications

Dimensions and WeightUnit dimensions (overall)66 cm x 38 cm x 49.5 cm
Unit dimensions (top light)51.6 cm x 12.5 cm x 6.3 cm
Unit dimensions (bottom light)64.7 cm x 38 cm x 10 cm
Shipping (boxed) dimensions45 cm x 73 cm x 55 cm
Net weight13kg
Shipping - gross weight17kg
Performance SpecificationsPeak wavelength440nm-460nm
Lamp duration60,000hrs
Average spectral irradiance Top light - 40.0 µ
Bottom light - 66.0 µ
Effective surface area Top light - 48 cm x 20 cm
Bottom light - 48 cm x 20 cm
Irradiance uniformity ratioTop light - 0.63 (IEC compliant --> 0.4)
Bottom light - 0.64 (IEC compliant --> 0.4)
Electrical SpecificationsPower characteristics60W, 100-240VAC, 47/63Hz
COTS External PSInternational medical safety approvals
Class I construction is standard (ground required)
100k hours MTBF
Energy star efficiency level V compliant
RoHS compliant
Over voltage / over current protection
Environmental SpecificationsOperatingAmbient temp: +10°C to +35°C
Humidity: 0% to 90% RH non condensing
Atmospheric pressure: 70-106kPa
Sealing: IPX3
Transport and storageAmbient temp: 0°C to +50°C
Humidity: 0% to 90% RH non condensing
Atmospheric pressure: 70-106kPa
ExclusionsNot for use inside an incubator
Not for use inside any radiant warmer
RegulatoryEN 60601-1:2006 + A1:2013
EN 60601-1-2:2015
EN 60601-2-50: 2009
EN 60601-1-6:2010
Biocompatibility Tests
ISO: 10993-Part 10Skin sensitisation
ISO 10993-Part 5Cytotoxicity direct contact
ISO:10993-Part 10Primary skin irritation

Standard warranty 1 year.

(Subject to MTTS policy)

Ordering Information and Servicing

Ordering InformationFirefly UnitFF1-1000Main Unit
Gel MattressFF1-1011
AccessoriesBattery BackupFF1-10202 hours - internal
Eye patch (5 pieces)YPT-1013Adjustable
Mains Power CableCOR-10001EU Standard
COR-10002US/VN Standard
COR-10003UK Standard
COR-10004AUS Standard
COR-10005India Standard
User ManualFF1-1030English
Quick Reference GuideFF1-1031English