halogen to led conversion
- Thread starter lambsfarm 13
- Start date
Please register or login
Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
- Ability to post and comment on topics and discussions.
- A Free photo gallery to share your dive photos with the world.
- You can make this box go away
Charlie99
Contributor
- Messages
- 7,966
- Reaction score
- 169
- # of dives
- 500 - 999
The normal drive voltage for low voltage halogens in household use is 12V, but 60 or 50Hz AC. What you have in your in you light is 12V DC. Normal halogen bulbs don't care much whether it is 12VAC or 12VDC, but the LED version may have circuitry that assumes that that voltage coming in is AC.
Do you have a spec sheet for the LED replacement bulb? If the LED bulb is rated for 12VDC, then it should work.
Do you have a spec sheet for the LED replacement bulb? If the LED bulb is rated for 12VDC, then it should work.
OP
lambsfarm 13
Registered
hmm will check up on that. cheers.
OP
lambsfarm 13
Registered
important notes concerning the installation of LED bulbs
Excessive heat will cause LEDs to fail prematurely.
They must be operated in an ambient temperature,not exceeding room temperature, for maximum life time.
As the temperature rises above 23 degrees C, the life time goes down.
Active cooling, such as a small fan, may be required if they are installed in a small enclosed space without ventilation.
Excessive heat will cause LEDs to fail prematurely.
They must be operated in an ambient temperature,not exceeding room temperature, for maximum life time.
As the temperature rises above 23 degrees C, the life time goes down.
Active cooling, such as a small fan, may be required if they are installed in a small enclosed space without ventilation.
We do not make claims that these bulbs are drop-in replacements for all light fixtures with similar bulbs.
We always recommend powering them only with a 12 Volt DC regulated power supply.
Unregulated AC power supplies will often exceed the maximum voltage of these bulbs
and cause premature failure which is not covered by our warranty.
found this. sounds ok to me. anyone know different?
We always recommend powering them only with a 12 Volt DC regulated power supply.
Unregulated AC power supplies will often exceed the maximum voltage of these bulbs
and cause premature failure which is not covered by our warranty.
found this. sounds ok to me. anyone know different?
Charlie99
Contributor
- Messages
- 7,966
- Reaction score
- 169
- # of dives
- 500 - 999
Please go for it. We need a guinea pig. 
Seriously, other than heat build up issues, it should work. The new bulb should be using less power than your current halogen one. If you can manage to hold your halogen one in your hand after it has run a while, then you should be OK on the heat with the LED one ---- the rise over ambient temp will pretty much be directly proportional to the power drawn by the bulb.
I looked at a couple of other MR16 replacement specs and some had internal regulators and circuitry that were good for either AC or DC.
Others, like the one you quoted, were for DC only. That's good for you, but kind of scary for the general market because most people have just a dumb low voltage tranformer that feeds the low voltage lights with more or less 12VAC.
Seriously, other than heat build up issues, it should work. The new bulb should be using less power than your current halogen one. If you can manage to hold your halogen one in your hand after it has run a while, then you should be OK on the heat with the LED one ---- the rise over ambient temp will pretty much be directly proportional to the power drawn by the bulb.
I looked at a couple of other MR16 replacement specs and some had internal regulators and circuitry that were good for either AC or DC.
Others, like the one you quoted, were for DC only. That's good for you, but kind of scary for the general market because most people have just a dumb low voltage tranformer that feeds the low voltage lights with more or less 12VAC.
OP
lambsfarm 13
Registered
light is away for service at moment but when back will post results of change over
Similar threads
