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Whelen Interior Light 70844 Series
Overview
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70844 series are LED (Light Emitting Diode) instrument post light assemblies designed to illuminate the instrument panel and function as instrument mounting bolts. It is a high quality, long lasting, modern alternative to standard incandescent post lights. They offer significant technological upgrades over existing products. Utilizing LED technology, the following advantages are offered: Long Life (approx. 20,000 hours); Reduced Power Consumption (compared to alternative light sources); Shock & Vibration Resistant (no fragile filament to burn out); Light (produces bright white light) and No EMI or RFI Interference. Available in 1" or 1.5" post and 14 VDC or 28 VDC. |
Features
- Long life - approximately 20,000 hours.
- Reduced power consumption -compared to alternative light sources
- Shock and vibration resistant, no fragile filament to burn out
- Light - produces bright white light.
- No EMI or RFI interference
Specifications
- Drawing Number: 70844
- Weight: 0.03 lbs. (14gm)
- Exposed Height: 1.00" (25mm) without spacer, 1.12" (28mm) w/spacer
- Power Consumption: 0.02 amps @ 14 VDC, and 0.02 amps @ 28 VDC
Reviews
Though LED is the way to go, this product overall is weak. The housing and hood seem to be made of simple plastic and dont hold up to heat well. The hoods are attached by snapping on to the outside of the body, as such, they are easily knocked-off and they wear over time, loosing their grip. I dont see how one can change the LED (when needing replacement) without throwing the whole thing away. The LED is fixed to the body iteself, or I just cant see how t comes out. If true this will add to its overall cost. heads-up, I called the manufacturer about issues with the post light and they have indicated that they are unhappy with it and are going to discontinue this product
These lights are the worst. Guarantee the hood will fall off. Guarantee you will lose the hood. Guarantee this will happen over and over. Replacement hoods are $20 each, which is better than the $50 they used to be, but still, I am so sick of replacing these after every flight.
Q&A
Please note, Aircraft Spruce Australia's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Australia assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
Per the manufacturer, the 70844 series assemblies are not dimmable and they would require a pulse width module in order to dim them. A rheostat would not work as the power consumption rates on the LED are not linear like in a halogen bulb so they would just shut off at a certain point.
Per the manufacturer, the 70844 series assemblies are not dimmable and they would require a pulse width module in order to dim them. A rheostat would not work as the power consumption rates on the LED are not linear like in a halogen bulb so they would just shut off at a certain point.
Per the MaxDim manufacturer, yes this should work fine.
The thread on these post lights is size 8-32.
Yes, as mentioned in an earlier Q+A, these MaxDim units should work fine with these post lights.
Yes, these will include the nut to fasten to the panel.
Yes, 14v and 12v are interchangable.
Yes, it does.
Yes this light is compatible with a PWM dimmer.