T5 UVL Super Actinic color?

[Icefire]

Isn't this bulb supposed to be purple?
It's way more white than that in reality.
1x39w Drived by a Workhorse7, alone on one red.

 

[The Grim Reefer]

They look sorta violet blue.

 

[Icefire]

Well why mine is white with some blue?
I run all 13W fluo bulb in the apartement and if I run the UVL 5 minutes and shut it off, all is soo yellow it's disgusting lol.

The UVL is a VHO bulb, I don't know if the WH7 was driving it at 39W or 60W.

My Amp probe read 1.4A @ red wire of the bulb, 120-180Hz, Voltage reading was funky.

120V 60Hz in, 0A was read on the black lead.

 

[The Grim Reefer]

Ahhh, its on a WH7, probably running at 54 watts or so. Looks blue in the pic and lights up the paints pretty good.

 

[Icefire]

Yeah it does emit UVA, but it's actualy more white in than blue in real.

Why would it run @ 54W? Fulham website say the WH7 can run 39W bulb, I doutb they would overdrive them? It should self regulate.

How those ballast are working? 220W / 4 red wires = 55W/wire Max?

My Amp probe read 1.4A @ red wire of the bulb, 120-180Hz, Voltage reading was funky.

120V 60Hz in, 0A was read on the black lead.

 

[The Grim Reefer]

If the lamp looks white is mut seriously be getting overdriven somehow. A WH 3 will run a 39 watt T5, the 7 is listed for 54 and 80 watt lamps.

 

[Icefire]

Diagrams for T5 Linear HO with a bulb set 4xF39 HO

Diagram 7 for WH7
Diagram 27 for WH8

 

[Icefire]

Ballast input: 120v 0.3-0.4A (36-48w)

Doubt it's overdrived looking at these number.

I'm waiting on a second reply from Fulham about running only 1-2-3 lamp on the ballast.

Here's a more realistic pic:

 

[sjm817]

Here is what the 54W UVL looked like on my 90G driven by a Triad. Its the bulb on the left

 

[The Grim Reefer]

If the lamp was being overdriven enough to make it look white that paper would probably be burnt from the heat. You may have just got a bunk lamp, try posting in the Ice Cap forum an see what they think, they helped UV lighting develop that lamp.

 

[Icefire]

Thanks for the pic.

Grim the bulb is quite hot after a few minutes, can't keep my hand on it.