Video: Product Review
Video: Testing & Teardown
Links:
Product website CandelabraBulb.com or just search Amazon for Sexy LEDs
Another great YouTube channel that reviews LED blubs is ElectronUpdate’s YouTube channel
Features:
Candelabra bulb style in E12 sockets
4 Watt LED with 50 Watt equivalent light output 400 Lumens
Style is flame or round tip
Comes in gold or silver base
Dimmable
Life span is 12 years at 6.8hrs/day or 30,000 hours.
80% more efficient then incandescent
Soft, warm white light (2700 k)
Hidden heat sink
Return on Investment:
5 watt x 6 hours per day usage x 365 days = 10.95 kWh.
At 12 cents per kWh it will cost $1.32 a year to operate.
Subtract that from the $10.50 cost to run a 40 watt bulb saves you $9 per yr.
I have 16 bulbs so I will save $144 per year.
The current cost for 16 bulbs is ~$416 so I would get 100% ROI in 2.8 years.
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- Sexy LED for review and teardown
- One Sexy LED full on
- One Sexy LED dimmed to lowest setting
- Marking on packaging
- Current test
- 1 minute trend on current shows 74 mA
- Zoom in on current trend to see small ripple.
- Current average was 74 mA
- 120V x 0.074A give 8.76 watts. Higher than advertised 5 watts!
- K type temperature probe on metal heat sync to read operating temperature.
- Used in my hall for 3 months. Look very nice!
- Probing operating temperature.
- operating temperature trend started
- operating temperature trend finished.
- K type temperature probe set to read operating temperature of glass bulb
- operating temperature of glass bulb is 51.6C
- Close up of the six LEDs once glass is removed.
- Setup to read operating temperature of LED substrate
- operating temperature of LED substrate was 71.5C after 10 minutes.
- operating temperature of LED substrate trend plot.
- Thermal conductive pad between LED substrate metal and metal heat sync.
- Removing the electronics package
- Some kind of SMPS circuit
- power circuit
- power circuit with large cap and transistor removed
- power circuit
- power circuit
- power circuit
- Large Cap
- Transformer
- LEDs See datasheet for LEMWH51W80MZ30_5152
- LEDs See datasheet for LEMWH51W80MZ30_5152
- LED substrate
- LED substrate
- LED top view
- Testing just LEDs using bench power supply
- Testing just LEDs using bench power supply. Ran at 18A 300 mA but normal light output was 15V 40 mA
- Thanks for joining!